40-13 Al-Hakim Abu Ali Al-Husayn ibn Ahmad al-Bayhaqi narrated that Muhammad ibn Yahya al-Sowli quoted on the authority of Al-Mogheera ibn Muhammad, on the authority of Harun Al-Farawi, “When the news ofAr-Ridha’’s successorship to the Throne of Al-Ma’mun reached us in Medina, Abdul Jab’bar ibn Sa’eed ibn Soleiman al-Mosahaqi declared it to the people at the end of his sermon. He said, “Do you realize who the successor to the throne is? They said, “No.” He said, “It is Ali ibn Musa ibn Ja’far ibn Muhammad ibn Ali ibn Al-Husayn ibn Ali ibn Abi Talib .Seven forefathers - what ancestorswho are the best to drink in the direction of the clouds.”