After the Battle of Siffin, Ali wrote a detailed testament in favor of his son Imam Hasan. It is a brilliant code of counsel, which provides guidance for every Muslim. The testament is found in Nahj-ul-Balagha, and its running translation is given hereunder: "Son, I enjoin on you that you should fear God. Follow His commandments. Enliven your heart with His remembrance. Hold fast to His rope. No relationship is stronger than the relation that exists between you and God."