Sahih al-Bukhari, Book 85, Hadith 30 (In-Book) ⓘ
Narrated `Abdullah: The Muslims did not free slaves as Sa'iba, but the People of the Pre-lslamic Period of Ignorance used to do so.
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.
also referenced under: Hadith 6753 (DarusSalam) & Volume 8, Book 80, Hadith 745 (USC-MSA)