(8) باب صُحْبَةِ الْمَمَالِيكِ وَكَفَّارَةِ مَنْ لَطَمَ عَبْدَهُ
Hilal b. Yasaf reported:
We used to sell cloth in the house of Suwaid b. Muqarrin, the brother of Nu'man b. Muqarrin. There came out a slave-girl, and she said something to a person amongst us, and he slapped her. Suwaid was enraged-the rest of the hadlth is the same.
Reference: Sahih Muslim 1658 c
In-book reference: Book 27, Hadith 51
USC-MSA web (English) reference(deprecated numbering scheme): Book 15, Hadith 4083