4-17 In another tradition it is narrated that Muhammad ibn Ali Majiluwayh -may God be pleased with him- quoted on the authority of hisuncle Muhammad ibn Abil Qasim, on the authority of Muhammad ibn Ali al-Kufi, on the authority of Muhammad ibn Khalaf, on the authority of Yunus ibn Abdul Rahman, on the authority of Asad ibn Abi al-A’la, on the authority of Abdul Rahman ibn al-Hajjaj that, “Abul Hassan Musa ibn Ja’far (s) appointed his son Ali (s) as his Testamentary Trustee. He wrote him a note and had sixty of the noble men of Medina sign it as witnesses.”