Columbia subject headings:
Hadith--Criticism, interpretation, etc.
Shīʻah--Relations--Sunnites.
Sunnites--Relations--Shīʻah.
Harvard subject headings:
Hadith--Criticism, interpretation, etc.
Shīʻah--Relations--Sunnites.
Sunnites--Relations--Shīʻah.
Princeton subject headings: