(26) باب مَا أَنْفَقَ الْعَبْدُ مِنْ مَالِ مَوْلاَهُ
Umair, the freed slave of Abi'l-Lahm reported:
I was the slave (of Abi'l-Lahm). I asked the Messenger of Allah (ﷺ) if I could give some charity out of my master's wealth. He said: Yes, and the reward is half and half between you two.
Reference: Sahih Muslim 1025 a
In-book reference: Book 12, Hadith 105
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2236