Columbia subject headings:
Sufism--Early works to 1800.
Harvard subject headings:
Ibn ʻAbbād, Muḥammad ibn Ibrāhīm, 1332 or 1333-1390
Sufism--Early works to 1800
Princeton subject headings:
Ibn ʻAbbād, Muḥammad ibn Ibrāhīm, 1332 or 1333-1390.
Mysticism--Islam.
Sufism.