Sunan Ibn Majah · Hadith 2626
The Chapters on Manumission (of Slaves) - كتاب العتق
حدثنا محمد بن يحيى، حدثنا سعيد بن محمد الجرمي، حدثنا المطلب بن زياد، عن إسحاق بن إبراهيم، عن جده، عمير - وهو مولى ابن مسعود - أن عبد الله، قال له يا عمير إني أعتقك عتقا هنيئا إني سمعت رسول الله صلى الله عليه وسلم يقول " أيما رجل أعتق غلاما ولم يسم ماله فالمال له " . فأخبرني ما مالك .
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: “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?”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).