13. Al-Husayn ibn Muhammad has narrated from al-Khayrani, from his father who has said the following. “Once I was standing before abu al-Hassan in Khurasan and someone said tp him, “O my master, if something will happen to who (will go Leadership with Divine Authority)?” The Imam said, “It will go to abu Ja‘far , my son.” The person asking the question thought of abu Ja‘far as very young for such task. Abu al-Hassan said, “Allah, the Most Holy, the Most High, sent Jesus, son of Mary as a messenger prophet, the owner of a whole legal system. He began his task when he was smaller in age than abu Ja‘far .”