Ahmad ibn Ali al-Najashi
Abū al-ʿAbbās Aḥmad ibn ʿAlī ibn al-ʿAbbas ibn Muḥammad ibn ʿAbdullāh al-Najāshī al-Asadī (Arabic: أحمد بن علي بن أحمد بن العباس بن محمد بن عبد الله النجاشي الأسدي; c. 982–1058), often simply referred to as al-Najāshī, was a Twelver Shi'ite Muslim scholar mainly known for his work on the subject of biographical evaluation (ʿilm al-rijāl, Islamic science dealing with the reliability of hadith transmitters), called the Rijāl al-Najāshī. His family is descended from Abu Samal ibn Hubayra al-Asadi (d.