Three-Narrator Ahadith · Book 3 · Hadith 1
حَدَّثَنَا سُفْيَانُ، حَدَّثَنِي عَبْدُ اللَّهِ بْنُ دِينَارٍ، سَمِعَ ابْنَ عُمَرَ يَقُولُ: «نَهَى رَسُولُ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ، عَنْ بَيْعِ الْوَلَاءِ، وَعَنْ هِبَتِهِ.»
ʿAbdullāh ibn ʿUmar (رضي الله عنهما) reported that the Messenger of Allāh (ﷺ) prohibited the sale of walāʾ (the right of clientship that arises from manumission) and the gifting of it. Reference: Musnad Aḥmad 1