“The Etiquette of Judiciary” from <em>Yanābīʿ al-ʿUlūm</em> Authored by: Abū al-ʿAbbās Shams al-Dīn, Aḥmad ibn al-Khalīl al-Barmakī al-Khūyī A Study and Critical Edition A Study and Critical Edition” (d. 637 AD)

This study presents a critical edition of the chapter Ādāb al-Qaḍāʾ (Judicial Conduct) from Yanābīʿ al-ʿUlūm by Imām Abū al-ʿAbbās Shams al-Dīn Aḥmad ibn al-Khalīl al-Barmakī al-Khūyī (d. 637 AH). It aims to highlight the central role of the judiciary in Islamic law, as one of the most significant means of applying and enforcing Sharīʿah rulings and resolving disputes with justice. Although judicial literature occupies an important place in classical fiqh, this work is distinguished by its refined structure, coherent organization, and precise treatment of issues in accordance with the Shāfiʿī school. The research consists of an introduction and two analytical chapters, followed by the edited text. It addresses key questions concerning scholarly attention to judiciary studies, the author’s academic standing, and the book’s contribution to Islamic scholarship. The study seeks to introduce the author and assess his scholarly rank, examine the book’s historical context and methodology, and produce a reliable critical edition that benefits researchers and students. The methodology follows established principles of textual verification: reliance on primary sources, transcription according to modern orthography, documentation of Qur’ānic verses and ḥadīths, authentication of citations, biographical notes on mentioned figures, and preparation of indices. Three manuscripts were consulted. The earliest copy (673 AH) was adopted as the base text, while two later copies (732 AH and 746 AH) were used for collation and correction. The study concludes that judicial authority in Islam derives from legitimate governance, aiming to resolve disputes, prevent disorder, and uphold justice.