Sahih al-Bukhari 2232
صحيح البخاري#2232Sahihحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا يَعْقُوبُ، حَدَّثَنَا أَبِي، عَنْ صَالِحٍ، قَالَ حَدَّثَ ابْنُ شِهَابٍ، أَنَّ عُبَيْدَ اللَّهِ، أَخْبَرَهُ أَنَّ زَيْدَ بْنَ خَالِدٍ وَأَبَا هُرَيْرَةَ رضى الله عنهما أَخْبَرَاهُ أَنَّهُمَا، سَمِعَا رَسُولَ اللَّهِ صلى الله عليه وسلم يُسْأَلُ عَنِ الأَمَةِ تَزْنِي وَلَمْ تُحْصَنْ قَالَ " اجْلِدُوهَا، ثُمَّ إِنْ زَنَتْ فَاجْلِدُوهَا، ثُمَّ بِيعُوهَا بَعْدَ الثَّالِثَةِ أَوِ الرَّابِعَةِ ".
Narrated Zaid bin Khalid and Abu Huraira:that Allah's Messenger (ﷺ) was asked about an unmarried slave-girl who committed illegal sexual intercourse. They heard him saying, "Flog her, and if she commits illegal sexual intercourse after that, flog her again, and on the third (or the fourth) offense, sell her
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.