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islamic-usulWe're still mapping where this idea was first discussed. Key passages and related ideas below.

Qiyās (Analogical Reasoning)

Deriving a ruling for a new case by analogy to an established one sharing the same effective cause (ʿilla).

Deriving a ruling for a new case by analogy to an established one sharing the same effective cause (ʿilla).

Key passages(20)

Nihayat Aqdam · al-Shahrastani

Very high
Usul 1459explains

Usul · al-Sarakhsi

Very high

Ihkam Fi Usul Ahkam · Ibn Hazm

High

Talkhis Fi Usul Fiqh · Imam al-Haramayn al-Juwayni

High

Bidayat Mujtahid · Ibn Rushd

High
Dharica 2437challenges

Dharica · al-Sharif al-Murtada

High

Daw Bahir · Ibn Qudama

High

Masail Saghaniyya · al-Mufid

High

Radd Cala Mantiqiyyin · Ibn Taymiyya

High

Mabadi Wusul · al-'Allama al-Hilli

High

Mustasfa · al-Ghazali

High

Nafais Usul · al-Qarafi

High

Burhan Fi Usul Fiqh · Imam al-Haramayn al-Juwayni

High

Ciddat Usul · Shaykh al-Tusi

High
Mankhul 616challenges

Mankhul · al-Ghazali

High

Minhaj Fi Sharh Muslim · al-Nawawi

High

Musawwada Fi Usul Fiqh · Ibn Taymiyya

High

Rasail Wa Fatawa · Ibn Taymiyya

High

Shifa Ghalil · al-Ghazali

High

Jimac Cilm · al-Shafi'i

High