Sahih Muslim Book - 27, Hadith - 4304

وَحَدَّثَنَا عَبْدُ الْوَارِثِ بْنُ عَبْدِ الصَّمَدِ حَدَّثَنِى أَبِى حَدَّثَنَا شُعْبَةُ قَالَ قَالَ لِى مُحَمَّدُ بْنُ الْمُنْكَدِرِ مَا اسْمُكَ قُلْتُ شُعْبَةُ. فَقَالَ مُحَمَّدٌ حَدَّثَنِى أَبُو شُعْبَةَ الْعِرَاقِىُّ عَنْ سُوَيْدِ بْنِ مُقَرِّنٍ أَنَّ جَارِيَةً لَهُ لَطَمَهَا إِنْسَانٌ فَقَالَ لَهُ سُوَيْدٌ أَمَا عَلِمْتَ أَنَّ الصُّورَةَ مُحَرَّمَةٌ فَقَالَ لَقَدْ رَأَيْتُنِى وَإِنِّى لَسَابِعُ إِخْوَةٍ لِى مَعَ رَسُولِ اللَّهِ -صلى الله عليه وسلم- وَمَا لَنَا خَادِمٌ غَيْرُ وَاحِدٍ فَعَمَدَ أَحَدُنَا فَلَطَمَهُ فَأَمَرَنَا رَسُولُ اللَّهِ -صلى الله عليه وسلم- أَنْ نُعْتِقَهُ.

Shu'bah narrated: "Muhammad bin Al-Munkadir said to me: 'What is your name?' I said: 'Shu'bah.' Muhammad said: 'Abu Shu'bah Al-'Iraqi narrated to me from Suwaid bin Muqarrin that someone slapped a slave woman of his. Suwaid said to him: Do you not know that hitting the face is unlawful? He said: I remember when I was the seventh of my brothers, with the Messenger of Allah (s.a.w), and we only had one servant. One of us went and slapped him, and the Messenger of Allah (s.a.w) commanded us to manumit him."'