Isḥāq ibn Manṣūr ibn Bahrām, Abū Yaʿqūb al-Marwazī, al-maʿrūf bi-l-Kūsaj (al-mutawaffā: 251H)

Ibn Mansur Kawsaj, known as Abu Ya'qub al-Marwazi, was a distinguished scholar in the field of Hadith. His contributions to Islamic scholarship are marked by his rigorous methodology in the transmission and critique of Hadith. Among his notable works is a compilation that has served as a reference for later scholars in the field. His dedication to the preservation and analysis of Hadith has made him a respected figure among his contemporaries and subsequent generations of Islamic scholars.