The doctrine of the Ṣūfīs = Kitāb al-taʻarruf li-madhhab ahl al-taṣawwuf /

by Kalābādhī, Muḥammad ibn Ibrāhīm, active 10th century
Cambridge ; New York : Cambridge University Press, 1977

The Koran interpreted /

London : New York : Allen & Unwin ; Macmillan, 1955