Ibadi

From Abu Allah ibn Ibad (ca. 660-ca. 715), a moderate Kharijite who spent considerable time in Basra, Iraq. The Kharijites were members of the earliest sect in Islam that left the followers of Ali or Shia (q.v.) because of Shia willingness to allow human arbitration of Ali’s dispute with the caliph, Uthman, rather than divine judgment.

Source: Library of Congress