Saʿd b. ʿAbd Allāh, from both Aḥmad b. Muḥammad b. ʿĪsā and Yaʿqūb b. Yazīd, from al-Ḥasan b. ʿAlī b. Faḍḍāl, from Jaʿfar b. Muḥammad b. Manṣūr, from a man—whose name was ʿUmar b. ʿAbd al-ʿAzīz [1]—from Abī ʿAbd Allāh عليه السلام. ʿUmar b. ʿAbd al-ʿAzīz narrated: “He said: “If you reach morning and evening without seeing an Imam whom you can follow, love whom you have loved, and hate whom you have hated, until Allāh عز وجل causes him to reappear.”