[Footnote 80: Reland, de Relig. Moham. l. i. p. 17 - 47.
Sale's Preliminary Discourse, p. 73 - 76. Voyage de
Chardin, tom. iv. p. 28 - 37, and 37 - 47, for the Persian
addition, "Ali is the vicar of God!" Yet the precise number
of the prophets is not an article of faith.]