Sahih al-Bukhari 6753
صحيح البخاري#6753Sahihحَدَّثَنَا قَبِيصَةُ بْنُ عُقْبَةَ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي قَيْسٍ، عَنْ هُزَيْلٍ، عَنْ عَبْدِ اللَّهِ، قَالَ إِنَّ أَهْلَ الإِسْلاَمِ لا يُسَيِّبُونَ، وَإِنَّ أَهْلَ الْجَاهِلِيَّةِ كَانُوا يُسَيِّبُونَ.
Narrated `Abdullah:The Muslims did not free slaves as Sa'iba, but the People of the Pre-Islamic Period of Ignorance used to do so
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.
In-book reference: 85:30