Columbia subject headings:
Balkhī, Muḥammad ibn ʻUthmān, -1426 or 1427. ʻAyn al-ʻilm wa-zayn al-ḥilm.
Religious life--Islam--Early works to 1800.
Harvard subject headings:
Balkhī, Muḥammad ibn ʻUthmān, -1426 or 1427. ʻAyn al-ʻilm wa-zayn al-ḥilm.
Religious life--Islam--Early works to 1800
Princeton subject headings:
Balkhī, Muḥammad ibn ʻUthmān, -1426 or 1427. ʻAyn al-ʻilm wa-zayn al-ḥilm.
Sufism--Early works to 1800.