Makaatib
50/2. Chapter:
Writing of emancipations and conditions
Sahih Bukhari
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ أَرَادَتْ عَائِشَةُ أُمُّ الْمُؤْمِنِينَ أَنْ تَشْتَرِيَ جَارِيَةً لِتُعْتِقَهَا، فَقَالَ أَهْلُهَا عَلَى أَنَّ وَلاَءَهَا لَنَا. قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يَمْنَعُكِ ذَلِكِ، فَإِنَّمَا الْوَلاَءُ لِمَنْ أَعْتَقَ ".
Narrated `Abdullah bin `Umar: Aisha wanted to buy a slave-girl in order to manumit her. The girl's masters stipulated that her Wala' would be for them. Allah's Messenger (ﷺ) said (to `Aisha), "What they stipulate should not stop you, for the Wala' is for the liberator."
Reference : Sahih al-Bukhari 2562In-book reference : Book 50, Hadith 3USC-MSA web (English) reference : Vol. 3, Book 46, Hadith 736