Columbia subject headings:
Harvard subject headings:
Muḥammad, Prophet, -632--Companions--Early works to 1800.
Muḥammad, Prophet, -632--Friends and associates--Early works to 1800.
Muḥammad, Prophet, -632--Influence--Early works to 1800.
Princeton subject headings:
Muḥammad, Prophet, -632--Friends and associates--Early works to 1800.
Muḥammad, Prophet, -632--Influence--Early works to 1800.