either where water cannot be had, or when it may be of prejudice to a person's health, they are allowed in such cases to make use of fine sand or dust in lieu of it;8 and then they perform this duty by clapping their open hands on the sand, and passing them over the parts, in the same manner as if they were dipped in water. But for this expedient Mohammed was not so much indebted to his own cunning,1 as to the example of the Jews, or perhaps that of the Persian Magi, almost as scrupulous as the Jews themselves in their lustrations, who both of them prescribe the same method in cases of necessity;2 and there is a famous instance, in ecclesiastical history, of sand being used, for the same reason, instead of water, in the administration of the Christian sacrament of baptism, many years before Mohammed's time.3 Neither are the Mohammedans contented with bare washing, but 1 Al Jannâbi in Vita Abrah. Vide Poc. Spec. p. 303. 2 Herewith agrees the spurious Gospel of St. Barnabas, the Spanish translation of which (cap. 29) has these words: Dixo Abraham, Que harè yo para servir al Dios de los sanctos y prophetas? Respondiò el angel, Ve e aquella fuente y lavate, porque Dios quiere hablar contigo. Dixo Abraham, Come tengo de lavarme? Luego el angel se le appareciò como uno bello mancebo, y se lavò en la fuente, y le dixo, Abraham, haz como yo. Y Abraham se lavò, &c. 3 Al Kessâï. Vide Reland. de Rel. Mohamm. p. 81. 4 Al Ghazâli, Ebn al Athîr. 5 Vide Poc. Spec. p. 302, &c. 6 Barthol. Edessen, Confut. Hagaren. p. 360. G. Sionita and J. Hesronita, in Tract. de Urb. and Morib. Orient. ad Calcem Geogr. Nubiens. c. 15. Du Ryer, dans le Sommaire de la Rel. des Turcs, mis à la tête de sa version de l'Alcor. St. Olon, Descr. du Royaume de Maroc, c. 2. Hyde, in not. ad Bobov. de Prec. Moh. p. I; Smith, de Morib. et Instit. Turcar. Ep. I, p. 32. 7 Vide Reland. de Rel. Moh. l. 2, c. II. 8 Kor. c. 3, p. 59 and 5, p. 74. 1 Vide Smith, ubi sup. 2 Gemar. Berachoth. c 2. Vide Poc. not. ad Port Mosis, p. 380. Sadder, porta 84. 3 Cedren. p. 250.