Columbia subject headings:
Harvard subject headings:
Abū Bakr, Caliph, -634
Muḥammad, Prophet, -632--Companions.
Shīʻah--Doctrines
ʻAlī ibn Abī Ṭālib, Caliph, approximately 600-661
Princeton subject headings:
Abū Bakr, Caliph, -634.
Muḥammad, Prophet, -632--Companions.
Shīʻah--Doctrines.
ʻAlī ibn Abī Ṭālib, Caliph, approximately 600-661.