Columbia subject headings:
Harvard subject headings:
Degrees, Academic--Islamic Empire.
Hadith scholars--Certification.
Hadith scholars--Islamic Empire--Biography.
Muslim scholars--Certification.
Muslim scholars--Islamic Empire--Biography.
Princeton subject headings:
Degrees, Academic--Islamic Empire.
Hadith scholars--Biography.
Hadith scholars--Certification.
Muslim scholars--Biography.
Muslim scholars--Certification.