Abū al-Qāsim Muḥammad ibn ʿAbd Allāh, better known by his regnal name al-Qāʾim or al-Qāʾim bi-Amr Allāh, was the twelfth Isma'ili Imam and second caliph of the Fatimid dynasty, ruling in Ifriqiya from

Jawdhar, surnamed al-Ustadh, was a eunuch slave who served the Fatimid caliphs al-Qa'im, al-Mansur, and al-Mu'izz as chamberlain and de facto chief minister until his death. He was an extremely powerf