Jubbā‘ites.—Mu‘tazilites who followed the philosophical teaching of Abu ‘Alī Mahommed ul-Jubbā‘i of Basra.
Kaisānites.—A main class of the Shi‘ites (q.v.).
Kāmilites.—Ghāliites, followers of Abū Kāmil, who condemned the companions (Anṣār) because they did not do allegiance to ‘Alī, and ‘Alī because he surrendered his claims.
Karrāmites.—Ṣifātites, followers of Ibn Karrām, who went so far as to ascribe a body to God, and assimilated his nature to human nature.
Kayyālites.—Ghāliites, followers of Ahmad ibn Kayyāl, who, after supporting a propaganda for an Aliite, claimed to be the imām himself on the ground of his power over the spheres.
Khalafites.—‘Ajārida of Kermān and Multān, who believed that God wills good and evil, but condemned the children of unbelievers to hell.
Khārijites.—One of the earliest sects of Islam (see above).
Khārimites.—‘Ajārida, agreeing mostly with the Shu‘aibites and teaching that the relation of God to a man depends on what he professes at the end of his life.
Khaṭṭābites.—Ghāliites, followers of Abū-l Khaṭṭāb, who was put to death by Ibn Mūsā at Kufa. He was a violent supporter of Ja‘far uṣ-Ṣādiq, who however disowned him.
Khayyātites.—Mu‘tazilites, followers of Abū-l Ḥosain ul-Khayyāt, a teacher in Bagdad, part of whose philosophical teaching was that the non-existent is a thing.