ʿAlī b. Abī Ḥamza al-Baṭāʾinī, Abū al-Ḥasan (d. ca. 202/818), was one of the founders of the Wāqifa school and a distinguished narrator of Imāmī ḥadīths.

He was a client (mawlā) of the ‘Helpers’ (al-Anṣār) and lived in Kūfa (al-Najāshī, 249; al-Ṭūsī, al-Rijāl, 245, 339). His father Abū Ḥamza Sālim is held to have been a companion of Jaʿfar al-Ṣādiq (al-Ṭūsī, al-Rijāl, 218). Al-Baṭāʾinī also studied for a while under Jaʿfar al-Ṣādiq (d. 148/765), is regarded as one of his companions (al-Barqī, ‘al-Rijāl’, 25; al-Najāshī, 249; al-Ṭūsī, al-Rijāl, 245), and narrated a number of ḥadīths from …