Columbia subject headings:
Harvard subject headings:
Dhimmis (Islamic law)--Early works to 1800.
Islam--Doctrines--Early works to 1800
Religious life--Islam--Early works to 1800.
Princeton subject headings:
Ibn Ḥanbal, Aḥmad ibn Muḥammad, 780-855--Hadith.
Islam--Doctrines.
Religious life--Islam.