On Imam Al-kazim’s صلى الله عليه وعلى آله وسلم Clear Appointment of Imam al-Ridha صلى الله عليه وعلى آله وسلم

4-6 In another tradition it is narrated that Muhammad ibn Al-Hassan ibn Ahmad ibn al-Valid - may God be pleased with him - narrated that Muhammad ibn Al-Hassan As-Saffar quoted on the authority of Al-Hassan ibn Musa Al-Khashshab, on the authority of Ahmad ibn Muhammad ibn Abi Nasr Al-Bezanti, on the authority of Zakaria ibn Adam, on the authority of Dawood ibn Kathir that he said to Abi Abdullah, “May I be your ransom! Who should I follow if anything should happen to you and you perish?” Imam As-Sadiq صلى الله عليه وعلى آله وسلم said, “My son Musa.” Then this happened. By God, I did not have the least bit of doubt in my mind about (the appointment of) Musa صلى الله عليه وعلى آله وسلم. About thirty years passed. Then I went to see Abul Hassan Musa (al-Kadhim) صلى الله عليه وعلى آله وسلم and said, “May I be your ransom! Who should I follow if anything should happen to you and you perish?” Imam Al-Kadhim صلى الله عليه وعلى آله وسلم said, “My son Ali.” Dawood added, “Then this happened. By God, I did not have the least bit of doubt in my mind about (the appointment of) Ali (al-Ridha) صلى الله عليه وعلى آله وسلم.”