Sahih Muslim Book - 29, Hadith - 4447

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ الْقَعْنَبِىُّ حَدَّثَنَا مَالِكٌ ح وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى - وَاللَّفْظُ لَهُ - قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنِ ابْنِ شِهَابٍ عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ عَنْ أَبِى هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ -صلى الله عليه وسلم- سُئِلَ عَنِ الأَمَةِ إِذَا زَنَتْ وَلَمْ تُحْصِنْ قَالَ « إِنْ زَنَتْ فَاجْلِدُوهَا ثُمَّ إِنْ زَنَتْ فَاجْلِدُوهَا ثُمَّ إِنْ زَنَتْ فَاجْلِدُوهَا ثُمَّ بِيعُوهَا وَلَوْ بِضَفِيرٍ ». قَالَ ابْنُ شِهَابٍ لاَ أَدْرِى أَبَعْدَ الثَّالِثَةِ أَوِ الرَّابِعَةِ. وَقَالَ الْقَعْنَبِىُّ فِى رِوَايَتِهِ قَالَ ابْنُ شِهَابٍ وَالضَّفِيرُ الْحَبْلُ.

It was narrated from Abu Hurairah that the Messenger of Allah (s.a.w) was asked about a slave woman who commits Zina and is not married. He said: "If she commits Zina, whip her; then if she commits Zina (again), whip her; then if she commits Zina, whip her, then sell her, even if it is for a rope." Ibn Shihab said: I do not know whether it (the selling) was after the third time or the fourth.