CSS Prepare

compulsory · CSS study notes

5. Sources of Islamic Law (Usul al-Fiqh) — Detailed

Primary Sources

  • The Qur'an — the literal, uncreated word of Allah revealed to Muhammad (PBUH), the first and supreme source.
  • The Sunnah — the sayings (Qawli), actions (Fi'li) and tacit approvals (Taqriri) of the Prophet (PBUH).
  • Ijma — consensus of qualified Mujtahids of an era (see Procedure of Ijma, Theme VII).
  • Qiyas — analogical reasoning extending a known ruling to a new case sharing the same effective cause ('Illah).

Secondary/Supplementary Sources

  • Istihsan — juristic preference for public benefit over strict analogy in exceptional cases.
  • Maslahah Mursalah — unregulated public interest not directly addressed by a specific text.
  • 'Urf — custom, so long as it does not contradict the Shariah.
  • Istishab — presumption of continuity.
  • Sadd al-Dhara'i — blocking the means to a prohibited end.

Qur'anic Evidence

📗

يَا أَيُّهَا الَّذِينَ آمَنُوا أَطِيعُوا اللَّهَ وَأَطِيعُوا الرَّسُولَ وَأُولِي الْأَمْرِ مِنْكُمْ ۖ فَإِن تَنَازَعْتُمْ فِي شَيْءٍ فَرُدُّوهُ إِلَى اللَّهِ وَالرَّسُولِ

اردو: اے ایمان والو! اللہ کی اطاعت کرو، رسول کی اطاعت کرو اور اپنے اولی الامر کی بھی۔ پھر اگر کسی معاملے میں جھگڑا ہو تو اسے اللہ اور رسول کی طرف لوٹاؤ۔

English: "O you who have believed, obey Allah and obey the Messenger and those in authority among you. And if you disagree over anything, refer it to Allah and the Messenger."

— Surah An-Nisa 4:59

Hadith Evidence — Mu'adh ibn Jabal's Dialogue

📘

When sent to Yemen as judge, the Prophet (PBUH) asked Mu'adh how he would judge. He replied: "By the Book of Allah." "And if you do not find it there?" "By the Sunnah of the Messenger of Allah." "And if you do not find it there?" "I will exercise my own reasoning (Ajtahidu ra'yi)." The Prophet (PBUH) approved, saying: "Praise be to Allah who has guided the messenger of the Messenger of Allah to what pleases the Messenger of Allah."

— Sunan Abu Dawud 3592; Sunan al-Tirmidhi 1327 (al-Tirmidhi himself noted the chain is not strongly connected; jurists still cite it because its content is corroborated by the Companions' wider practice.)

CSS Exam Tips

  • List sources strictly in order of authority (Qur'an → Sunnah → Ijma → Qiyas) before adding supplementary sources — examiners check this hierarchy.
  • Cross-reference: Governance Structure in Islam, Procedure of Ijma and Its Kinds and Procedure of Ijtihad (Theme VII).

20-Mark Enrichment — Analytical Material

Core Argument

Uṣūl al-fiqh is the methodology by which revelation becomes law — the discipline that specifies what counts as evidence, how evidence is ranked, how conflicts are resolved, and how a ruling is derived for a case the texts never mention. The 20-mark thesis: this methodology is Islam's answer to the problem every legal system faces — how to remain faithful to a fixed text while governing changing circumstances — and it solves it by distinguishing immutable sources (Qur'an, Sunnah) from derivative and adaptive instruments (ijmāʿ, qiyās, maṣlaḥah, istiḥsān, ʿurf), all disciplined by the maqāṣid.

1. Fiqh vs Sharīʿah vs Uṣūl — Get the Terms Right

  • Sharīʿah: the divine law as revealed — comprehensive, immutable in its definitive elements.
  • Fiqh: the jurists' understanding of the Sharīʿah — human, fallible, plural, and historically situated.
  • Uṣūl al-fiqh: the methodology by which fiqh is derived from Sharīʿah — the "science of the roots."
  • Why this matters: confusing Sharīʿah with fiqh produces the error of treating a jurist's opinion as divine and therefore unamendable. Stating this distinction in the first paragraph immediately signals competence.
  • Founding text of the discipline: al-Shāfiʿī's al-Risālah — the first systematic work of uṣūl.

2. The First Source — The Qur'an

  • Authority: وَنَزَّلْنَا عَلَيْكَ الْكِتَابَ تِبْيَانًا لِّكُلَّ شَيْءٍ — "And We have sent down to you the Book as a clarification for all things." — (16:89); مَّا فَرَّطْنَا فِي الْكِتَابِ مِن شَيْءٍ — "We have not neglected in the Register a thing." — (6:38).
  • Qaṭʿī al-thubūt (definitively transmitted, by tawātur) — its authenticity is beyond dispute.
  • But its indication (dalālah) may be qaṭʿī (definitive, e.g. fixed inheritance shares) or ẓannī (open to interpretation, e.g. qurūʾ in 2:228). This qaṭʿī/ẓannī distinction is the technical key to the whole discipline and explains why jurists differ without any of them contradicting revelation.
  • Legal content: roughly 500 verses bear directly on legal rulings — mostly principles, with a small number of fixed rules; the ratio itself is evidence of intended flexibility.
  • Modes of expression: ʿāmm (general) and khāṣṣ (specific), muṭlaq and muqayyad, mujmal and mubayyan, manṭūq and mafhūm, nāsikh and mansūkh, muḥkam and mutashābih (3:7).

3. The Second Source — The Sunnah

  • Authority: وَمَا آتَاكُمُ الرَّسُولُ فَخُذُوهُ وَمَا نَهَاكُمْ عَنْهُ فَانتَهُوا — "And whatever the Messenger has given you - take it; and what he has forbidden you - refrain from it." — (59:7); مَّن يُطِعِ الرَّسُولَ فَقَدْ أَطَاعَ اللَّهَ — "He who obeys the Messenger has obeyed Allah." — (4:80); وَمَا يَنطِقُ عَنِ الْهَوَىٰ — "Nor does he speak from [his own] inclination." — (53:3).
  • Functions relative to the Qur'an: confirming (muʾakkid), explaining (mubayyin — e.g. the form of prayer, the rates of Zakāt), and establishing rulings not in the Qur'an (munshiʾ — e.g. the prohibition of combining a woman and her paternal aunt in marriage).
  • Classification by transmission: mutawātir (mass-transmitted, definitive), mashhūr, and āḥād (solitary — authoritative but speculative in transmission).
  • Classification by content: qawlī (verbal), fiʿlī (action), taqrīrī (tacit approval).
  • Critical distinction: acts performed as legislation versus acts of custom (ʿādah) or personal specificity (khaṣāʾiṣ) — a distinction that prevents the elevation of seventh-century Arabian custom to law.
  • The isnād system as a science of authentication — Islam's distinctive contribution to the evaluation of testimony.

4. The Third Source — Ijmāʿ (Consensus)

  • Definition: agreement of all qualified mujtahids of a given era on a legal ruling.
  • Basis: 4:115 (following a way other than that of the believers); the ḥadīth لَا تَجْتَمِعُ أُمَّتِي عَلَىٰ ضَلَالَةٍ — "my ummah will not agree upon an error" (Tirmidhī, Ibn Mājah).
  • Types: ṣarīḥ (explicit) and sukūtī (tacit, where some ruled and others were silent — its authority is disputed).
  • Practical difficulty: verifying the agreement of every mujtahid across the Muslim world was already hard after the first generation; hence the strongest agreed instance is the ijmāʿ of the Companions (e.g. the compilation of the Qur'an, the tarāwīḥ arrangement, the kharāj settlement).
  • Modern relevance: collective ijtihād through fiqh academies (Islamic Fiqh Academy of the OIC, AAOIFI in finance, national councils such as Pakistan's CII) is the practical contemporary substitute.

5. The Fourth Source — Qiyās (Analogy)

  • Definition: extending the ruling of a textually governed case (aṣl) to a new case (farʿ) on the basis of a shared effective cause (ʿillah).
  • Four pillars: aṣl, farʿ, ḥukm, ʿillah.
  • Classic example: wine is prohibited (5:90) because it intoxicates (ʿillah); therefore all intoxicants — including modern narcotics — share the ruling. Extend this to contemporary cases (synthetic drugs, certain medical uses) to show live application.
  • Identifying the ʿillah is the whole difficulty; jurists developed masālik al-ʿillah (methods of identification: explicit text, allusion, consensus, sabr wa taqsīm,* munāsabah*).
  • Limits: no qiyās in matters of pure worship (ʿibādāt, whose forms are taʿabbudī) or where an explicit text exists.
  • The Ẓāhirī rejection: Dāwūd al-Ẓāhirī and Ibn Ḥazm rejected qiyās; noting this shows awareness that the four-source scheme is the majority position, not a unanimous one.

6. Supplementary Sources (Adilla Mukhtalaf Fīhā)

  • Istiḥsān (juristic preference — departing from strict analogy for a stronger consideration): favoured by the Ḥanafīs; criticised by al-Shāfiʿī as legislating by whim, a criticism the Ḥanafīs answered by grounding it in other evidence.
  • Maṣlaḥah Mursalah (unrestricted public interest): favoured by the Mālikīs; the basis of ʿUmar's (RA) kharāj settlement, the compilation of the Qur'an, and the minting of currency. Conditions: it must be genuine, general, and not contradict a text.
  • Istiṣḥāb (presumption of continuity): the basis of the maxim الْأَصْلُ بَرَاءَةُ الذِّمَّةِ — the presumption of innocence — and الْيَقِينُ لَا يَزُولُ بِالشَّكِّ (certainty is not removed by doubt).
  • ʿUrf (custom): binding where it does not contradict a text — الْعَادَةُ مُحَكَّمَةٌ; the mechanism by which Islamic law absorbs local practice, and the reason fiqh looks different in Cairo, Kano and Karachi without ceasing to be Islamic.
  • Sadd al-Dharāʾiʿ (blocking the means): prohibiting a lawful act that reliably leads to a prohibited one; basis of 6:108.
  • Sharʿ man qablanā (revealed law of earlier communities) and Madhhab al-Ṣaḥābī (the opinion of a Companion).

7. Maqāṣid al-Sharīʿah — the Purposive Layer

  • Developed by al-Juwaynī, al-Ghazālī (al-Mustaṣfā) and systematised by al-Shāṭibī (al-Muwāfaqāt); extended in the modern period by Ibn ʿĀshūr and Ṭāhā Jābir al-ʿAlwānī.
  • Five ḍarūriyyāt: protection of religion (dīn), life (nafs), intellect (ʿaql), lineage (nasl), property (māl); some add honour (ʿirḍ).
  • Three tiers: ḍarūriyyāt (necessities), ḥājiyyāt (needs), taḥsīniyyāt (embellishments) — a priority ordering for policy conflict.
  • Function: the maqāṣid supply the criterion by which new questions are judged and by which apparent rules are read purposively — ʿUmar's (RA) suspension of the theft ḥadd in famine is the classic case of a purposive reading.
  • Modern use: bioethics, finance, environmental regulation, human rights and constitutional interpretation.

The five universal maxims (al-qawāʿid al-khams), each usable in an administrative or policy answer:

  1. الْأُمُورُ بِمَقَاصِدِهَا — matters are judged by their intentions.
  2. الْيَقِينُ لَا يَزُولُ بِالشَّكِّ — certainty is not removed by doubt.
  3. الْمَشَقَّةُ تَجْلِبُ التَّيْسِيرَ — hardship brings facilitation.
  4. الضَّرَرُ يُزَالُ — harm must be removed (from لَا ضَرَرَ وَلَا ضِرَارَ).
  5. الْعَادَةُ مُحَكَّمَةٌ — custom is authoritative.

Plus, for governance: تَصَرُّفُ الْإِمَامِ عَلَى الرَّعِيَّةِ مَنُوطٌ بِالْمَصْلَحَةِ and دَرْءُ الْمَفَاسِدِ مُقَدَّمٌ عَلَىٰ جَلْبِ الْمَصَالِحِ.

  • Contemporary application: AAOIFI standards in Islamic finance derived through qiyās and maṣlaḥah; organ transplantation, IVF and end-of-life questions resolved through the maqāṣid; environmental regulation via lā ḍarar; and, for Pakistan, the Council of Islamic Ideology and the Federal Shariat Court operating as institutional uṣūl bodies.

Qur'anic Evidence Bank

  • al-Naḥl 16:89 — the Book as a clarification of everything.
  • al-Ḥashr 59:7 — take what the Messenger gives you.
  • al-Nisāʾ 4:59 — refer disputes to Allah and the Messenger (the classical proof-text for ijtihād and qiyās).
  • al-Nisāʾ 4:80, 4:115 — obedience to the Messenger; the way of the believers (ijmāʿ).
  • al-Ḥashr 59:2 — fa-ʿtabirū yā ulī al-abṣār — "take a lesson, O people of vision," cited as a Qur'anic basis for analogical reasoning (iʿtibār).
  • Āl-ʿImrān 3:7 — muḥkam and mutashābih verses.
  • al-Anbiyāʾ 21:78–79 — two prophets, differing rulings, both commended.
  • al-Baqarah 2:185 — Allah intends ease, not hardship (basis of taysīr).

Hadith / Seerah Application

  • The ḥadīth of Muʿādh (RA): Book → Sunnah → ajtahidu raʾyī (Abū Dāwūd, Tirmidhī) — the classical structure of the sources in a single narration.
  • إِذَا حَكَمَ الْحَاكِمُ فَاجْتَهَدَ ثُمَّ أَصَابَ فَلَهُ أَجْرَانِ، وَإِذَا حَكَمَ فَاجْتَهَدَ ثُمَّ أَخْطَأَ فَلَهُ أَجْرٌ (Bukhārī & Muslim) — error in sincere ijtihād is rewarded, which is the doctrinal licence for a plural jurisprudence.
  • لَا ضَرَرَ وَلَا ضِرَارَ (Ibn Mājah) — the source of maxim four.
  • لَا تَجْتَمِعُ أُمَّتِي عَلَىٰ ضَلَالَةٍ (Tirmidhī, Ibn Mājah) — basis of ijmāʿ.
  • The Banū Qurayẓah episode, where the Companions differed over whether to pray ʿAṣr en route or on arrival and the Prophet ﷺ rebuked neither (Bukhārī) — prophetic endorsement of legitimate interpretive difference.

Critical / Analytical Angle

The examiner is testing whether a candidate can explain how Islamic law changes without ceasing to be Islamic. The answer lies in the architecture: the sources are ranked, the definitive elements are few and fixed, and everything else is reasoned. Al-Shāfiʿī's achievement in al-Risālah was not to invent rules but to impose a discipline of derivation, so that legal reasoning could be argued, criticised and corrected rather than asserted. That is why a legal tradition with a fixed scripture produced four surviving Sunnī schools that disagree extensively and consider one another orthodox — and why the ḥadīth on the rewarded error is doctrinally central rather than a curiosity: it institutionalises pluralism. Two contemporary conclusions follow, and both belong in the closing paragraph. First, the "closing of the gate of ijtihād" was a historical development, not a scriptural rule, and it is reversible. Second, the correct response to novel questions — cryptocurrency, artificial intelligence, genetic engineering, climate policy — is not to search for a medieval precedent but to apply the methodology: identify the ʿillah, weigh the maṣlaḥah, test against the maqāṣid, and reason collectively.

Model 20-Mark Answer Skeleton

  1. Introduction (2) — Sharīʿah / fiqh / uṣūl distinction; al-Shāfiʿī's Risālah.
  2. Qur'an (3) — authority, qaṭʿī/ẓannī, modes of expression.
  3. Sunnah (3) — authority, functions, transmission classes, legislative vs customary acts.
  4. Ijmāʿ (3) — definition, basis, types, difficulty, modern collective ijtihād.
  5. Qiyās (3) — four pillars, the wine example, limits, Ẓāhirī dissent.
  6. Supplementary sources (3) — istiḥsān, maṣlaḥah, istiṣḥāb, ʿurf, sadd al-dharāʾiʿ.
  7. Maqāṣid and legal maxims (2); contemporary application and conclusion (1).

✍️ Full Model Answer — Exam-Ready Prose

Introduction (2 marks): Uṣūl al-fiqh is the methodology by which revelation becomes law. It must be distinguished from Sharīʿah, the divine law as revealed, and from fiqh, the jurist's fallible human understanding of that law — a distinction al-Shāfiʿī systematised in his foundational al-Risālah. Confusing fiqh with Sharīʿah produces the serious error of treating a jurist's opinion as divine and therefore unamendable.

The Qur'an (3 marks): As the first source, the Qur'an is definitively transmitted (qaṭʿī al-thubūt) and thus beyond dispute in its authenticity, though its indication (dalālah) may be either definitive, as with fixed inheritance shares, or open to interpretation. The Qur'an itself testifies to its own completeness: "We have not neglected in the Register a thing" (al-Anʿām 6:38). This qaṭʿī/ẓannī distinction explains why jurists can differ legitimately without any of them contradicting revelation.

The Sunnah (3 marks): The Sunnah's authority rests on the command, "whatever the Messenger has given you, take it, and whatever he has forbidden you, refrain from it" (al-Ḥashr 59:7). It functions to confirm, explain, and establish rulings not found in the Qur'an, and is classified by transmission as mutawātir, mashhūr, or āḥād. Jurists carefully distinguish acts performed as legislation from those reflecting mere custom or personal specificity, preventing the elevation of seventh-century Arabian habit to binding law.

Ijmāʿ (3 marks): Consensus of the qualified mujtahids of an era draws support from the ḥadīth لَا تَجْتَمِعُ أُمَّتِي عَلَىٰ ضَلَالَةٍ — "my ummah will not agree upon an error" (Tirmidhī, Ibn Mājah). The clearest historical instance is the ijmāʿ of the Companions, as in the compilation of the Qur'an under Abū Bakr (RA). Given the practical difficulty of verifying universal agreement, modern collective ijtihād through bodies such as the Islamic Fiqh Academy and Pakistan's Council of Islamic Ideology serves as its contemporary substitute.

Qiyās (3 marks): Analogical reasoning extends the ruling of a textually governed case to a new case sharing the same effective cause (ʿillah). The classical example — wine is prohibited (al-Māʾidah 5:90) because it intoxicates — extends by analogy to all modern narcotics. Qiyās does not apply to matters of pure worship or where an explicit text already governs, and it is worth noting that Ẓāhirī jurists such as Ibn Ḥazm rejected it altogether, showing that the four-source scheme is a majority position, not a unanimous one.

Supplementary Sources (3 marks): Istiḥsān (juristic preference), favoured by the Ḥanafīs, departs from strict analogy for a stronger consideration; maṣlaḥah mursalah (unrestricted public interest), favoured by the Mālikīs, underlay ʿUmar's (RA) kharāj settlement and the compilation of the Qur'an; istiṣḥāb grounds the presumption of innocence; and ʿurf (custom) — captured in the maxim الْعَادَةُ مُحَكَّمَةٌ, "custom is authoritative" — is the mechanism by which Islamic law absorbs local practice without ceasing to be Islamic.

Maqāṣid, Contemporary Application, and Conclusion (3 marks): Al-Shāṭibī's maqāṣid al-Sharīʿah identify the five necessities — religion, life, intellect, lineage, and property — as the criteria against which new questions are judged, from Islamic finance to bioethics. The Prophet's ﷺ ruling that a judge who reasons sincerely and errs still earns one reward, while one who reasons and is correct earns two (Bukhārī & Muslim), institutionalises pluralism in interpretation rather than treating it as a defect. Uṣūl al-fiqh is the discipline that lets a seventh-century text govern a twenty-first-century world — not by bending the revelation, but by reasoning from it under rules that can be argued, tested and corrected.

One-Line Conclusion for a 20-Mark Answer

Uṣūl al-fiqh is the discipline that lets a seventh-century text govern a twenty-first-century world — not by bending the revelation, but by reasoning from it under rules that can be argued, tested and corrected.

📌 Past Paper Questions — CSS 2017–2026

Sources of law come up mainly through Ijma and Ijtihad questions. Open the year page and jump to the Q number.

Related questions:

🎯 Exam pattern: Secondary sources are MCQ favourites — 2024: Istishab is a Fiqh term; Masalih Mursalah used most widely by Imam Malik. 2026: Istihsan most used by Hanafis ("None of these" among the given options).

📝 CSS Past-Paper MCQs — 2024–2026

Actual FPSC MCQs placed under this relevant syllabus subtopic. Answers follow the existing solved papers, with corrections or cautions stated where needed. The provided 2017–2023 papers lack Part-I questions.

  • 2024 · MCQ 4 (1 mark). A Hadith narrated directly by a Tabi'i from the Prophet ﷺ (omitting a Companion) is called:
    • Options: A. Marfu · B. Maqtu · C. Mawquf · D. Mursal
    • Correct answer: D. Mursal. Classification by the missing link in the chain. Year-wise solved paper.
  • 2024 · MCQ 8 (1 mark). 'Tarjuman al-Qur'an' is the title of which Companion?
    • Options: A. Abdullah bin Abbas · B. Muadh bin Jabal · C. Abdullah bin Masud · D. Usman bin Affan
    • Correct answer: A. Abdullah bin Abbas (RA). Celebrated for interpretation of the Qur'an. Year-wise solved paper.
  • 2024 · MCQ 9 (1 mark). 'Istishab' is a term belonging to which discipline?
    • Options: A. Tasawwuf · B. Hadith · C. Tafsir · D. Fiqh
    • Correct answer: D. Fiqh. A jurisprudential presumption of continuity. Year-wise solved paper.
  • 2024 · MCQ 11 (1 mark). Sahifa-e-Hammam bin Munabbih is contained in its entirety in which book?
    • Options: A. Sahih Bukhari · B. Sahih Muslim · C. Musnad Ahmad · D. Sunan Tirmidhi
    • Correct answer: C. Musnad Ahmad. Early written Hadith collection attributed to Hammam ibn Munabbih. Year-wise solved paper.
  • 2024 · MCQ 17 (1 mark). Imam Muslim bin Hajjaj al-Qushayri died in:
    • Options: A. 260 AH · B. 261 AH · C. 262 AH · D. 263 AH
    • Correct answer: B. 261 AH. Hadith-scholar chronology. Year-wise solved paper.
  • 2024 · MCQ 18 (1 mark). Which Imam applied Masalih Mursalah most extensively?
    • Options: A. Imam Shafi'i · B. Imam Abu Hanifa · C. Imam Malik · D. Imam Ahmad ibn Hanbal
    • Correct answer: C. Imam Malik. A distinctive methodological association with Maliki jurisprudence. Year-wise solved paper.
  • 2025 · MCQ 9 (1 mark). What does Hadith Taqreeri mean?
    • Options: A. Prophet's speeches · B. Companions' conversation · C. Prophet's tacit approval of a Companion's action · D. None of these
    • Correct answer: C. Tacit Prophetic approval. Taqrir is part of the Sunnah classification. Year-wise solved paper.
  • 2026 · MCQ 9 (1 mark). Which school uses Istihsan most extensively?
    • Options: A. Maliki · B. Hanbali · C. Shafi'i · D. None of these
    • Correct answer: D. None of these. The Hanafi school is most associated with Istihsan; it is not listed. Year-wise solved paper.
  • 2026 · MCQ 20 (1 mark). How many basic conditions are required for a Hadith to be considered Sahih?
    • Options: A. 4 · B. 5 · C. 8 · D. 3
    • Correct answer: B. Five. Continuity of chain; narrator integrity and accuracy; no contradiction (shudhudh); no hidden defect ('illah). Year-wise solved paper.