Columbia subject headings:
Harvard subject headings:
Islamic law.
Shīʻah--Customs and practices.
Shīʻah.
Ṭabāṭabāʼī al-Yazdī, Muḥammad Kāẓim, -1919. ʻUrwah al-wuthqá.
Princeton subject headings:
Islam--Customs and practices.
Shīʻah.
Ṭabāṭabāʼī al-Yazdī, Muḥammad Kāẓim, -1919. ʻUrwah al-wuthqá.