Sahih al-Bukhari 6753

Arabic

حَدَّثَنَا قَبِيصَةُ بْنُ عُقْبَةَ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي قَيْسٍ، عَنْ هُزَيْلٍ، عَنْ عَبْدِ اللَّهِ، قَالَ إِنَّ أَهْلَ الإِسْلاَمِ لا يُسَيِّبُونَ، وَإِنَّ أَهْلَ الْجَاهِلِيَّةِ كَانُوا يُسَيِّبُونَ‏.‏

English translation

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

Reference: Sahih al-Bukhari 6753, Book of Laws of Inheritance (Al-Faraa'id). English translation by Dr. Muhammad Muhsin Khan.