Ahmad b. 'Ali al-Najashi

Abū al-ʿAbbās Aḥmad ibn ʿAlī ibn al-ʿAbbas ibn Muḥammad ibn ʿAbdullāh al-Najāshī al-Asadī (; –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 (, Islamic science dealing with the reliability of hadith transmitters), called the . His family is descended from Abu Samal ibn Hubayra al-Asadi (d. 60 AH / 679 CE), a poet of the Ridda Wars who repented and fought in the Battle of al-Qadisiyyah in 636, during the Muslim conquest of Persia. His ancestor was Abdullah al-Najashi, the wāli of al-Ahwaz at the time of Abu Ja'far al-Mansur (754–775), who was an "adamant Rāfiḍi" according to Basran historian Abu al-Yakzan (d. 805). Abdullah is also known for his correspondence of inquiry with Ja'far al-Sadiq. His son, Muhammad ibn Abdullah, was also the governor of Istakhr in Iran.