For the Curds, see De Guignes, tom. ii. p. 416, 417, the Index Geographicus of Schultens and Tavernier, Voyages, p. i. p. 308, 309. The Ayoubites descended from the tribe of the Rawadiaei, one of the noblest; but as they were infected with the heresy of the Metempsychosis, the orthodox sultans insinuated that their descent was only on the mother's side, and that their ancestor was a stranger who settled among the Curds.