Columbia subject headings:
Harvard subject headings:
Abū Bakr, Caliph, -634--Quotations.
Maxims, Arabic.
ʻAlī ibn Abī Ṭālib, Caliph, approximately 600-661--Quotations.
ʻUmar ibn al-Khaṭṭāb, Caliph, -644--Quotations.
ʻUthmān ibn ʻAffān, Caliph, -656--Quotations.
Princeton subject headings:
Abū Bakr, Caliph, -634--Quotations.
Maxims, Arabic.
ʻAlī ibn Abī Ṭālib, Caliph, approximately 600-661--Quotations.
ʻUmar ibn al-Khaṭṭāb, Caliph, -644--Quotations.
ʻUthmān ibn ʻAffān, Caliph, -656--Quotations.