6-40 Muhammad ibn Ahmad al-Baghdady has narrated that Ahmad ibn al-Fazl al-Ahwazi quoted Bakr ibn Ahmad al-Qasri, on the authority of Abu Ahmad Ja’far ibn Muhammad ibn Abdullah ibn Musa, (on the authority of his father), that his father Musa (Al-Kadhim (MGB)), narrated a similar narration on the authority of his father Ja’far ibn Muhammad (MGB).