Sunan Ibn Majah Book 19, Hadith 19

“O Umair, I have set you free in a good way. I heard the Messenger of Allah (ﷺ) 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?”

Another chain reports a similar hadith.

Previous Hadith

“Whoever frees a slave who has some wealth, the slave's wealth belongs to him, unless the master stipulates that it will belong to him.”

Sunan Ibn Majah Book 19, Hadith 18
Next Hadith

the Messenger of Allah (ﷺ) was asked about illegitimate children. He said: “Two sandals in which I wage Jihad are better than freeing an illegitimate child.”

Sunan Ibn Majah Book 19, Hadith 20