Columbia subject headings:
Harvard subject headings:
Hadith--Early works to 1800
Islamic law--Sources--Early works to 1800.
Taqlīd--Early works to 1800.
Princeton subject headings:
Ijtihād (Islamic law)--Early works to 1800.
Islamic law--Sources--Early works to 1800.
Taqlīd--Sources--Early works to 1800.