Hadith.5503 - Aban ibn Uthman narrated from Muhammad ibn Marwan from the Shaykh, meaning Imam Musa ibn Jafar Al-Kadhim (as), from his father, Abu Abdullah Imam Jafar ibn Muhammad Al-Sadiq (as), peace be upon them both, that Imam (as) said
"Indeed, Abu Jafar Imam Muhammad ibn Ali Al-Baqir (as), passed away and left sixty servants. He freed one-third of them, then I drew lots among the remaining ones and freed another one-third."