Qawati al-Adilla fi al-Usul

Qawati al-Adilla fi al-Usul (The Decisive Proofs in Legal Theory) is a major treatise on the principles of Islamic jurisprudence (usul al-fiqh) written by the Shafi'i jurist and traditionist Abu al-Muzaffar al-Samani (426–489 AH / 1035–1096 CE) al-Mawsua al-Fiqhiyya al-…+1.

Background and Composition

Al-Sam'ani stated two primary motivations for composing the work: fulfilling the request of a group of his companions who asked him to write a comprehensive compendium on legal theory, and addressing the shortcomings he observed in existing treatises by fellow jurists Jami al-Masail wa al-Qawa…+1. He noted that many earlier authors had contented themselves with superficial phrasing and followed the speculative methods of dialectical theologians (mutakallimun) rather than grounding legal theory in the actual meanings and practical branches of jurisprudence (fiqh) Jami al-Masail wa al-Qawa…+1. The book stands among his later compositions, as he frequently references his other works within it, including al-Intisar, al-Istislam, al-Burhan, and Minhaj al-Sunna Ara al-Samani al-Aqdiyya.

Method and Content

The work is distinguished by its integration of theoretical principles with practical legal application and Hadith methodology Jami al-Masail wa al-Qawa…. Al-Sam'ani deliberately avoided theological digressions characteristic of works authored by Ash'ari and Mu'tazili theologians, directing rigorous critique at scholastic theological approaches to legal theory Jami al-Masail wa al-Qawa…. He relied primarily on authentic and acceptable Hadith narrations when establishing legal proofs and expanded upon questions often overlooked in standard manuals of legal theory Jami al-Masail wa al-Qawa….

Reception and Impact

The book received high praise from subsequent classical scholars:

• His grandson Abu Sa'd al-Sam'ani described the work as so thorough that it rendered other writings in the field unnecessary Istinbatat al-Samani fi K…+1.
• Taj al-Din al-Subki praised it as the finest and most comprehensive book written on legal theory, calling it the most beneficial and majestic treatise in the Shafi'i school Istinbatat al-Samani fi K…+1. Al-Subki cited it approximately 187 times in his commentary on Ibn al-Hajib's Mukhtasar and incorporated many of al-Sam'ani's legal choices into his own manual, Jam' al-Jawami' Manhaj al-Imam Taj al-Din…+1.
• Badr al-Din al-Zarkashi deemed it the greatest Shafi'i work on legal theory in terms of both transmission and argumentation Jami al-Masail wa al-Qawa….

Despite its standing among jurists of the Shafi'i school, the text was largely bypassed by mainstream theological theorists in works like al-Ihkam by Sayf al-Din al-Amidi and al-Mahsul by Fakhr al-Din al-Razi, until al-Subki drew renewed attention to it in the eighth century AH Jami al-Masail wa al-Qawa….

Printed Editions

The work has been edited and published in modern scholarly editions, including:

• An edition edited by Abdullah al-Hakami and Ali Abbas al-Hakami, published in five volumes (1419 AH) Maalim Usul al-Fiqh inda ….
• An edition edited by Muhammad Hasan Ismail al-Shafi'i, published by Dar al-Kutub al-Ilmiyya in Beirut (1418 AH / 1997–1999 CE) al-Sabr inda al-Muhaddith…+1.