Sahih al-Bukhari 6760
Book 85: Laws of Inheritance (Al-Faraa'id) · Narrated by Aisha
Arabic
حَدَّثَنَا ابْنُ سَلاَمٍ، أَخْبَرَنَا وَكِيعٌ، عَنْ سُفْيَانَ، عَنْ مَنْصُورٍ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ، قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " الْوَلاَءُ لِمَنْ أَعْطَى الْوَرِقَ، وَوَلِيَ النِّعْمَةَ ".
English translation
Narrated Aisha:Allah's Messenger (ﷺ) said, "The wala is for the one who gives the silver (pays the price) and does the favor (of manumission after paying the price)
Reference: Sahih al-Bukhari 6760, Book of Laws of Inheritance (Al-Faraa'id). English translation by Dr. Muhammad Muhsin Khan.