Hadith.3396 - Hariz narrated from Muhammad ibn Muslim, who said:
"I asked Abu Ja'far Imam Muhammad ibn Ali Al-Baqir عليه السلام about a man who has slaves and wills to free one-third of them.
Imam عليه السلام said: 'Imam Ali ibn Abi Talib عليه السلام used to draw lots among them.'"