al-Ḥārith b. Murra al-ʿAbdī (d. 42/662), one of the companions of Imam ʿAlī and one of the earliest Muslims to participate in the conquest of Sindh (a province in present-day Pakistan).
He was a member of the Banū ʿAbd al-Qays tribe, and it is from this that his nisba ‘al-ʿAbdī’ derives (for more on this nisba, see al-Samʿānī, 4/135). In the available sources, the earliest mention of him is during the caliphate of Imam ʿAlī in connection with the Battle of Ṣiffīn in 37/657, where he was given command of the left flank of ʿAlī’s infantry (Naṣr, 205; …