Dr. Harald Motzki (retired) is one of the world's foremost specialists in the field of early and medieval Islamic history and law, on which he has authored multiple groundbreaking books and articles. Together with Professor Gregor Schoeler, Motzki is credited with establishing the isnād-cum-matn methodology, which seeks to reconstruct and date historical texts from the early Islamic period.
This important work is a source-critical study of a group of traditions (aḥādīth) found in Ibn Isḥāq's Biography (Sīra) of the prophet Muḥammad, widely considered one of the most important early historical texts on the Prophet's life. Through a meticulous isnād-cum-matn analysis, the author reveals that Ibn Isḥāq relied on Muḥammad b. Abī Muḥammad, a hitherto undocumented source of his. Important new light is also shed on problems with Ibn Hishām’s recension of Ibn Isḥāq’s Sīra.