It was narrated from Ishaq bin Ibrahim, from his grandfather 'Umair, who was the freed slave of Ibn Mas'ud, that 'Abdullah said to him: "0 "Umair, I have set you free in a good way. I heard the Messenger of Allah say: Any man who frees a slave and does not say anything about his(the slave’s) wealth, it belongs to him (the slave) ‘So tell me, how much wealth do you have?”’