Columbia subject headings:
Muḥammad, Prophet, -632--Biography--Sources.
Muḥammad, Prophet, -632--Biography--Study and teaching.
Harvard subject headings:
Muḥammad, Prophet, -632--Biography--Sources.
Muḥammad, Prophet, -632--Chronology--Sources.
Princeton subject headings:
Muḥammad, Prophet, -632--Biography--Sources.
Muḥammad, Prophet, -632--Biography--Study and teaching.