Major schools of Islamic thought & jurisprudence

The architecture of Islamic jurisprudence

Islamic law (fiqh) is the jurist's human understanding of the divine law (Shariah). Its discipline of legal theory, usul al-fiqh, was systematised above all by Imam Muhammad ibn Idris al-Shafi'i (d. 820 CE) in his treatise al-Risala, which fixed the four agreed sources for Sunni Islam in descending authority:

1. The Qur'an — the primary, uncreated source.
2. The Sunnah — the normative practice of the Prophet Muhammad (d. 632 CE), transmitted as Hadith and graded by the science of isnad (chain of narration).
3. Ijma (consensus) — the agreement of qualified scholars of a generation, grounded in the Prophetic report 'My community will not agree upon an error.'
4. Qiyas (analogical reasoning) — extending a ruling from a textual case to a new case sharing the same effective cause (illa).

Beyond these four, schools deploy subsidiary instruments: istihsan (juristic preference, prominent in the Hanafi school), istislah / maslaha mursala (consideration of public interest, developed by the Maliki Imam al-Shatibi in al-Muwafaqat), urf (custom), and istishab (presumption of continuity).

Ijtihad and taqlid

The engine of legal development is ijtihad — the exertion of a qualified jurist (mujtahid) to derive rulings from the sources. Its counterpart is taqlid, the adherence of a lay follower (muqallid) to an established school. The medieval claim that 'the gate of ijtihad closed' after roughly the 4th Islamic century is now contested by historians such as Wael Hallaq, who demonstrated continuous juristic activity. Modern reformers — Jamal al-Din al-Afghani (d. 1897), Muhammad Abduh (d. 1905), and in the subcontinent Sir Sayyid Ahmad Khan (d. 1898) and Muhammad Iqbal — called for the reopening of ijtihad; Iqbal devoted the sixth lecture of The Reconstruction of Religious Thought in Islam (1930) to 'The Principle of Movement in the Structure of Islam,' arguing that a Muslim legislative assembly could exercise collective ijtihad.

The five categories of acts

All Sunni schools classify human acts into five legal values (al-ahkam al-khamsa): wajib/fard (obligatory), mandub/mustahabb (recommended), mubah (permissible), makruh (disliked), and haram (forbidden). The higher objectives of the law — the maqasid al-shariah — were articulated by al-Ghazali (d. 1111) and al-Shatibi as the preservation of religion (din), life (nafs), intellect (aql), lineage (nasl), and property (mal). This framework underpins contemporary debates on Islamic finance, bioethics, and constitutional law, and is a recurring high-yield theme for the CSS Islamic Studies paper.

The four Sunni madhahib

Four schools of Sunni law survived as living traditions, each named for its eponymous imam and distinguished by method and geography.

Hanafi — founded on the teaching of Imam Abu Hanifa al-Nu'man (d. 767 CE) of Kufa and developed by his pupils Abu Yusuf and al-Shaybani. It privileges reasoned opinion (ra'y), qiyas, and istihsan, reflecting the cosmopolitan milieu of Iraq. It became the official madhhab of the Abbasid and Ottoman states and is dominant across South Asia, Central Asia, Turkey and the Levant — and is the school of the overwhelming Sunni majority in Pakistan.

Maliki — founded by Imam Malik ibn Anas (d. 795 CE) of Medina, author of al-Muwatta. It gives decisive weight to the practice of the people of Medina (amal ahl al-Madina) and to maslaha. It prevails in North and West Africa and Upper Egypt.

Shafi'i — Imam al-Shafi'i (d. 820 CE), the architect of usul, balanced text and reason and restricted istihsan. Dominant in Egypt, the Hejaz, East Africa, and Southeast Asia.

Hanbali — Imam Ahmad ibn Hanbal (d. 855 CE), the traditionist who endured the Mihna (the Abbasid inquisition over the createdness of the Qur'an, 833 CE). Strictly text-centred, it is the basis of the law applied in Saudi Arabia, and the doctrinal ancestor of Ibn Taymiyya (d. 1328) and the later Salafi current.

Shia jurisprudence

The largest Shia school, the Twelver (Ithna Ashari) Ja'fari school, traces its law to Imam Ja'far al-Sadiq (d. 765 CE). It accepts the Qur'an, Sunnah (including reports from the Imams), ijma and aql (reason) in place of qiyas, and recognises living ijtihad through the marja' al-taqlid (source of emulation). The Zaydi (Yemen) and Ismaili branches form smaller traditions.

Theology and movements

Doctrinally, Sunni orthodoxy crystallised around the Ash'ari (al-Ash'ari, d. 936) and Maturidi (al-Maturidi, d. 944) kalam schools, in reaction to the rationalist Mu'tazila. In the subcontinent the Deobandi (Darul Uloom Deoband, founded 1866) and Barelvi (Ahmad Raza Khan, d. 1921) movements — both Hanafi in law — diverge on Sufi practice and devotion to the Prophet, while Ahl-i-Hadith reject taqlid of any madhhab.

Why this matters for the exam

In the CSS scheme, this topic sits squarely in Islamic Studies (100 marks, compulsory), and it bleeds into Pakistan Affairs and Current Affairs wherever sectarian harmony, blasphemy law, or the Islamisation of law is examined. Examiners test it three ways.

As a direct descriptive question

PYQs have repeatedly demanded: 'Discuss the sources of Islamic law' and 'Write a note on Ijtihad and its significance in the modern age.' A scoring answer must list the four sources in correct hierarchical order, define ijma and qiyas precisely, and name the secondary sources with their host schools (istihsan—Hanafi; istislah—Maliki). Always anchor usul al-fiqh to al-Shafi'i's al-Risala.

As an analytical 'modern application' question

The higher-scoring band rewards candidates who connect maqasid al-shariah and collective ijtihad to live problems — Islamic banking (the riba judgment), the role of the Council of Islamic Ideology (Articles 228–231 of the 1973 Constitution), and the Federal Shariat Court (Article 203 et seq., inserted 1980). Cite Iqbal's Reconstruction lecture six as the indigenous authority for reopening ijtihad.

As a national-cohesion question

Questions on sectarianism expect you to explain why legal-theological difference need not mean conflict: the Amman Message of 2005, endorsed by over 500 scholars, formally recognised the eight madhahib (four Sunni, Ja'fari, Zaydi, Ibadi, Zahiri) as valid and forbade takfir among them. In the Pakistani context, note Article 20 (freedom to profess religion), Article 22(1) (no compulsion in another's religious instruction), and the 18th Amendment (2010) which made minority protection an Objectives Resolution staple.

High-yield facts to retain

• The four imams and their death-dates: Abu Hanifa (767), Malik (795), al-Shafi'i (820), Ahmad ibn Hanbal (855).
• Five ahkam and the five maqasid.
• Aql replaces qiyas in Ja'fari usul.
• Ash'ari/Maturidi = Sunni theology; Mu'tazila = rationalist.
• Deobandi and Barelvi are both Hanafi in fiqh — the difference is theological, not jurisprudential. Candidates routinely lose marks by miscategorising them.