Columbia subject headings:
ʻAlī ibn Abī Ṭālib, Caliph, approximately 600-661.
Harvard subject headings:
Princeton subject headings:
Caliphate.
Ḥūt, Maḥmūd.
Shīʻah--Apologetic works.
ʻAlī ibn Abī Ṭālib, Caliph, approximately 600-661.