Columbia subject headings:
Mahdi.
Mahdism.
Mahdī, Muḥammad ibn al-Ḥasan, 869-
Harvard subject headings:
Mahdism.
Mahdī, Muḥammad ibn al-Ḥasan, 869-
Princeton subject headings:
Mahdi.
Mahdism.
Mahdī, Muḥammad ibn al-Ḥasan, 869-
Shīʻah--Doctrines.