صحيح البخاري Sahih Bukhari كتاب العتق The Book of Manumission (of Slaves)
بَابُ بَيْعِ الْوَلاَءِ وَهِبَتِهِ:

(10) Chapter. The selling and conferring on others of the Wala of a manumitted slave.

2 hadith
Hadith 2535
حَدَّثَنَا أَبُو الْوَلِيدِ ، حَدَّثَنَا شُعْبَةُ ، قَالَ : أَخْبَرَنِي عَبْدُ اللَّهِ بْنُ دِينَارٍ ، سَمِعْتُ ابْنَ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا ، يَقُولُ : " نَهَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْ بَيْعِ الْوَلَاءِ ، وَعَنْ هِبَتِهِ " .
Narrated Ibn `Umar: Allah's Apostle forbade the selling or donating the Wala' of a freed slave.
Hadith Reference Sahih Bukhari / The Book of Manumission (of Slaves) / Hadith: 2535
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 2536
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ ، حَدَّثَنَا جَرِيرٌ ، عَنْ مَنْصُورٍ ، عَنْ إِبْرَاهِيمَ ، عَنِ الْأَسْوَدِ ، عَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا ، قَالَتِ : اشْتَرَيْتُ بَرِيرَةَ فَاشْتَرَطَ أَهْلُهَا وَلَاءَهَا ، فَذَكَرْتُ ذَلِكَ لِلنَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، فَقَالَ : " أَعْتِقِيهَا ، فَإِنَّ الْوَلَاءَ لِمَنْ أَعْطَى الْوَرِقَ " ، فَأَعْتَقْتُهَا ، فَدَعَاهَا النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، فَخَيَّرَهَا مِنْ زَوْجِهَا ، فَقَالَتْ : لَوْ أَعْطَانِي كَذَا وَكَذَا مَا ثَبَتُّ عِنْدَهُ ، فَاخْتَارَتْ نَفْسَهَا .
Narrated `Aisha: I bought Buraira but her masters put the condition that her Wala' would be for them. I told the Prophet about it. He said (to me), "Manumit her as her Wala' will be for the one who pays the price." So, I manumitted her. The Prophet called Buraira and gave her the option of either staying with her husband or leaving him. She said, "Even if he gave me so much money, I would not stay with him," and so she preferred her freedom to her husband.
Hadith Reference Sahih Bukhari / The Book of Manumission (of Slaves) / Hadith: 2536
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة