Columbia subject headings:
Muslims--Biography--Dictionaries--Early works to 1800.
Muḥammad, Prophet, -632--Companions--Dictionaries.
Muḥammad, Prophet, -632--Friends and associates--Dictionaries.
Harvard subject headings:
Muḥammad, Prophet, -632--Companions--Dictionaries.
Muḥammad, Prophet, -632--Friends and associates--Dictionaries.
Muslims--Biography--Dictionaries--Early works to 1800.
Princeton subject headings:
Hadith--Authorities--Early works to 1800.
Muḥammad, Prophet, -632--Friends and associates--Early works to 1800.