Columbia subject headings:
Hadith--Criticism, interpretation, etc.--History.
ʻUthmān ibn ʻAffān, Caliph, -656.
Harvard subject headings:
Hadith--Criticism, interpretation, etc.--History
ʻUthmān ibn ʻAffān, Caliph, -656.
Princeton subject headings:
Hadith--Criticism, interpretation, etc.--History.
ʻUthmān ibn ʻAffān, Caliph, -656.