In Ethe's Catalogue of the Persian Manuscripts in the India Office Library, there is an entry (No. 1778) describing a prose work entitled Anīsu 'l-Murīdīn wa Shamsu 'l-Majālis, which is ascribed in the introduction and colophon to Shaykh 'Abdullāh Anṣārī of Harāt. Ethé, obviously assuming the genuineness of this ascription, states in Geiger und Kuhn's Grundriss (vol. ii, p. 282) that the work is the oldest prose version of the Yūsuf and Zulaikha story, and on this assertion of Ethé's a recent number of Islamica (vol. iii, April, 1927, p. 10) contained a plea from Berthels for fuller information about the work. At the suggestion of Professor Nicholson I undertook the examination of the MS., which the India Office authorities kindly placed at my disposal in the University Library at Cambridge.