The Kashf al-mahjúb, the oldest Persian treatise on Súfiism (1911)
Author: 'Ali ibn 'Usman, called Data Ganj Bakhsh, Jullabi, Hujwiri, fl. 1030; Nicholson, Reynold Alleyne, 1868-1945
Subject: Persian language -- Texts and translations
Publisher: Leyden, Brill
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