Sadi bin Mahdi al-Hashimi
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Sadi bin Mahdi al-Hashimi is a contemporary scholar and professor of hadith and Quranic sciences, known for his academic study and edition of Abu Zur'ah al-Razi's biographical and critical heritage.
Academic Career and Education
Al-Hashimi earned his doctorate in hadith with first-class honors from the Faculty of Usul al-Din at al-Azhar University in 1398 AH (1978 CE) under the supervision of al-Husayni Abd al-Majid Hashim. His doctoral dissertation, Abu Zur'ah al-Razi wa-Juhuduhu fi al-Sunnah al-Nabawiyyah, investigated the life and methodology of the third-century hadith critic and provided critical editions of his Kitab al-Du'afa' and his responses to transmitter queries posed by Abu Uthman al-Bardha'i.
In 1398 AH (1978 CE), al-Hashimi began teaching at the Faculty of Hadith at the Islamic University of Madinah, where he also taught postgraduate courses in the Sunnah department beginning in 1402 AH (1982 CE). He was appointed to the university's library board starting in 1399 AH (1979 CE) and participated in the Academic Council during 1401–1403 AH (1981–1983 CE). He was promoted to associate professor in 1405 AH (1985 CE) and to full professor in 1411 AH (1991 CE). On 16 Rabi' al-Awwal 1416 AH, he transferred to Umm al-Qura University in Mecca to teach in the Department of al-Kitab wa-l-Sunnah in the Faculty of Da'wah and Usul al-Din.
Scholarly Activities and Mentorship
Al-Hashimi supervised more than forty master's and doctoral dissertations focusing on hadith sciences, Islamic creed, and traditional Quranic exegesis (al-tafsir bi-l-ma'thur), in addition to serving on evaluation committees for dozens of theses in hadith, theology, prophetic biography (sirah), and history. He also conducted peer reviews of academic works and evaluated faculty promotion files across multiple universities. In his historical research, al-Hashimi published Ibn Saba' Haqiqah la Khayal, examining classical narrations concerning early sectarian movements.
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List of Works
This specialized biographical treatise in hadith studies compiles and examines the biographies of hadith transmitters who shared the agnomen (kunya) Abu Zurʿah. It addresses the scholarly necessity in transmitter criticism (ʿilm al-rijāl) of identifying names and kunyas to avoid mistaking a single person for two distinct narrators or conflating separate individuals, particularly resolving ambiguities surrounding the unconditional use of the title Abu Zurʿah in hadith literature.
This academic study and critical edition examines the life, hadith scholarship, and critical methodology of the third-century AH hadith master Abu Zur'a al-Razi. Along with an extensive biographical and methodological analysis, the work provides a critical edition of Abu Zur'a's Kitab al-Du'afa' and his responses to Abu Uthman al-Bardha'i, complemented by a reference compendium of his assessments of narrators across transmitter criticism and hidden defects.
This historical and theological treatise is dedicated to establishing the historical reality of Abdullah ibn Saba against modern skepticism. Drawing on early and authoritative Shi'i texts as well as classical Sunni literature, it refutes twentieth-century writers who characterized Ibn Saba as a fictional figure or misidentified persona, tracing the emergence of the Saba'iyya sect and documenting the specific theological doctrines attributed to him.
This modern hadith study examines the authenticity and implications of a classical appraisal of Sunan Ibn Majah attributed to Abu Zur'a al-Razi. It analyzes historical reports regarding Abu Zur'a's evaluation of weak narrations in the compilation and provides a detailed critical catalog of narrators in Sunan Ibn Majah whom Abu Zur'a deemed weak, categorizing those unique to Ibn Majah among the Six Books as well as those shared with other compilers.
This specialized hadith study examines conflicting evaluations of narrators in the science of hadith criticism (al-jarh wa-l-ta'dil), focusing on the rulings of Yahya ibn Ma'in. It addresses the phenomenon where critics issued multiple, seemingly contradictory judgments of appraisal and disparagement regarding the same transmitter, analyzing previous literature on disputed narrators and formulating systematic principles and methodological steps to harmonize such divergent reports.