Al-Khattab ibn al-Hasan ibn Abi'l-Hifaz was a warrior, poet and theologian, who became Dhu'ayb ibn Musa's principal aide, and an important asset to the Sulayhid dynasty and Tayyibi Isma'ilism cause, until his murder by his nephews in a dispute over control of al-Hajur in 1138. Al-Khattab was succeeded as chief assistant (maʾdhūn) by Ibrahim ibn al-Husayn al-Hamidi.