Sahih Bukhari 2564

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ ، أَخْبَرَنَا مَالِكٌ ، عَنْ يَحْيَى بْنِ سَعِيدٍ ، عَنْ عَمْرَةَ بِنْتِ عَبْدِ الرَّحْمَنِ ، أَنَّ بَرِيرَةَ جَاءَتْ تَسْتَعِينُ عَائِشَةَ أُمَّ الْمُؤْمِنِينَ رَضِيَ اللَّهُ عَنْهَا ، فَقَالَتْ لَهَا : إِنْ أَحَبَّ أَهْلُكِ أَنْ أَصُبَّ لَهُمْ ثَمَنَكِ صَبَّةً وَاحِدَةً فَأُعْتِقَكِ فَعَلْتُ ، فَذَكَرَتْ بَرِيرَةُ ذَلِكَ لِأَهْلِهَا ، فَقَالُوا : لَا ، إِلَّا أَنْ يَكُونَ وَلَاؤُكِ لَنَا . قَالَ مَالِكٌ : قَالَ يَحْيَى : فَزَعَمَتْ عَمْرَةُ أَنَّ عَائِشَةَ ذَكَرَتْ ذَلِكَ لِرَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، فَقَالَ : اشْتَرِيهَا وَأَعْتِقِيهَا ، فَإِنَّمَا الْوَلَاءُ لِمَنْ أَعْتَقَ .

Narrated `Amra bint `Abdur-Rahman: Buraira went to Aisha, the mother of the faithful believers to seek her help in her emancipation Aisha said to her, If your masters agree, I will pay them your price in a lump sum and manumit you. Buraira mentioned that offer to her masters but they refused to sell her unless the Wala' was for them. `Aisha told Allah's Apostle about it. He said, Buy and manumit her as the Wala' is for the liberator.