47-27 Muhammad ibn Ahmad As-Sinani - may God have Mercy upon him - narrated that Muhammad ibn Abi Abdillah al-Kufi quoted on the authority of Sa’d ibn Malik, on the authority of Abi Hamza, on the authority of Abi Kathir,

“When (Imam Ar-Ridha’’s father) Musa died, the people were at a loss (what to do) about his affairs. I went on the Hajj pilgrimage where I saw Ar-Ridha’ . I was wondering whether I should keep obeying Musa as the Divine Leader or obey this man (Ar-Ridha’ ) and told myself, ‘For they said, ‘What! a man! A Solitary one from among ourselves! Shall we follow such a one? Truly should we then be straying in mind and mad!’’ Then Ali (ibn Musa Ar-Ridha’) passed by me like a lightning jolt and said, ‘By God, I am the man whom you must obey.’ I said, ‘I ask the Sublime God and you to forgive me.’ Ar-Ridha’ said, ‘You are forgiven.’”I have been told this very same tradition by more than one of the elders on the authority of Muhammad ibn Abi Abdullah al-Kufi with the same chain of narration.