Abū l-Shaʿthāʾ Jābir b. Zayd al-Azdī al-ʿUmānī al-Yaḥmidī al-Jawfī al-Baṣrī was a prominent jurist and traditionist and the founding father of the Ibāḍī movement in Basra. He was born in 18/639 or 21/642 in Nizwā (or Firq, near Nizwā) in Oman. He assumed the leadership of the Ibāḍī community of Basra upon the death of ʿAbdallāh b. Ibāḍ (d. 89/708), the eponym of the movement. Like the latter, Jābir b. Zayd maintained good relations with the Umayyad rulers, but, towards the