Sahih Muslim
Sahih Muslim 1703a
وَحَدَّثَنِي عِيسَى بْنُ حَمَّادٍ الْمِصْرِيُّ، أَخْبَرَنَا اللَّيْثُ، عَنْ سَعِيدِ بْنِ أَبِي سَعِيدٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّهُ سَمِعَهُ يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " إِذَا زَنَتْ أَمَةُ أَحَدِكُمْ فَتَبَيَّنَ زِنَاهَا فَلْيَجْلِدْهَا الْحَدَّ وَلاَ يُثَرِّبْ عَلَيْهَا ثُمَّ إِنْ زَنَتْ فَلْيَجْلِدْهَا الْحَدَّ وَلاَ يُثَرِّبْ عَلَيْهَا ثُمَّ إِنْ زَنَتِ الثَّالِثَةَ فَتَبَيَّنَ زِنَاهَا فَلْيَبِعْهَا وَلَوْ بِحَبْلٍ مِنْ شَعَرٍ " .
Abu Huraira reported that he heard the Messenger of Allah (ﷺ) say: If a slave woman belonging to one of you commits adultery and this is established, flog her with the prescribed punishment and do not reproach her. If she commits adultery again, flog her with the prescribed punishment and do not reproach her. If she commits adultery a third time and it is established, sell her, even for a rope of hair.