[691] Al-Nujúm al-Záhira, ed. by Juynboll, vol. i, p. 639.
[692] This is the literal translation of Ikhwánu ’l-Safá, but according to Arabic idiom 'brother of purity' (akhu ’l-ṣafá) simply means 'one who is pure or sincere,' as has been shown by Goldziher, Muhamm. Studien, Part I, p. 9, note. The term does not imply any sort of brotherhood.
[693] Ibnu ’l-Qifṭí, Ta’ ríkhu ’l-Ḥukamá (ed. by Lippert), p. 83, l. 17 sqq.
[694] Notice sur un manuscrit de la secte des Assassins, by P. Casanova in the Journal Asiatique for 1898, p 151 sqq.
[695] De Goeje, Mémoire sur les Carmathes, p. 172.
[696] Ṣâliḥ b. ‘Abd al-Quddûs und das Zindîḳthum während der Regierung des Chalifen al-Mahdí in Transactions of the Ninth Congress of Orientalists, vol. ii, p. 105 seq.
[697] Ṭabarí, iii, 522, 1.
[698] I.e. the sacred books of the Manichæans, which were often splendidly illuminated. See Von Kremer, Culturgesch. Streifzüge, p. 39.
[699] Cf. Ṭabarí, iii, 499, 8 sqq.
[700] Ibid., iii, 422, 19 sqq.