Columbia subject headings:
Arabian Peninsula--History.
Hadith--Criticism, interpretation, etc.
Islam--History.
Muḥammad, Prophet, -632.
Harvard subject headings:
Arabian Peninsula--History.
Hadith--Criticism, interpretation, etc.
Islam--History
Muḥammad, Prophet, -632
Princeton subject headings:
Arabian Peninsula--History.
Arabs--History--To 622.
Islam--History.