صحيح البخاري Sahih Bukhari كتاب المكاتب The Book of Al-Mukatab
بَابُ إِذَا قَالَ الْمُكَاتَبُ اشْتَرِنِي وَأَعْتِقْنِي. فَاشْتَرَاهُ لِذَلِكَ:

(5) Chapter. If a Mukatab slave asks somebody to buy and free him, it is permissible for that person to buy him.

1 hadith
Hadith 2565
حَدَّثَنَا أَبُو نُعَيْمٍ ، حَدَّثَنَا عَبْدُ الْوَاحِدِ بْنُ أَيْمَنَ ، قَالَ : حَدَّثَنِي أَبِي أَيْمَنُ ، قَالَ : دَخَلْتُ عَلَى عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا ، فَقُلْتُ : كُنْتُ غُلَامًا لِعُتْبَةَ بْنِ أَبِي لَهَبٍ ، وَمَاتَ وَوَرِثَنِي بَنُوهُ ، وَإِنَّهُمْ بَاعُونِي مِنْ عَبْدِ اللَّهِ بْنِ أَبِي عَمْرِو بْنِ عُمَرَ بْنِ عَبْدِ اللَّهِ المَخْزُومِيِّ ، فَأَعْتَقَنِي ابْنُ أَبِي عَمْرٍو وَاشْتَرَطَ بَنُو عُتْبَةَ الْوَلَاءَ ، فَقَالَتْ : دَخَلَتْ بَرِيرَةُ وَهِيَ مُكَاتَبَةٌ ، فَقَالَتِ : اشْتَرِينِي وَأَعْتِقِينِي ، قَالَتْ : نَعَمْ ، قَالَتْ : لَا ، يَبِيعُونِي حَتَّى يَشْتَرِطُوا وَلَائِي ، فَقَالَتْ : لَا حَاجَةَ لِي بِذَلِكَ ، فَسَمِعَ بِذَلِكَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَوْ بَلَغَهُ ، فَذَكَرَ لِعَائِشَةَ ، فَذَكَرَتْ عَائِشَةُ مَا قَالَتْ لَهَا ، فَقَالَ : اشْتَرِيهَا وَأَعْتِقِيهَا ، وَدَعِيهِمْ يَشْتَرِطُونَ مَا شَاءُوا ، فَاشْتَرَتْهَا عَائِشَةُ ، فَأَعْتَقَتْهَا ، وَاشْتَرَطَ أَهْلُهَا الْوَلَاءَ ، فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : " الْوَلَاءُ لِمَنْ أَعْتَقَ ، وَإِنِ اشْتَرَطُوا مِائَةَ شَرْطٍ " .
Narrated `Abdul Wahid bin Aiman: I went to `Aisha and said, "I was the slave of `Utba bin Abu Lahab. "Utba died and his sons became my masters who sold me to Ibn Abu `Amr who manumitted me. The sons of `Utba stipulated that my Wala' should be for them." `Aisha said, "Buraira came to me and she was given the writing of emancipation by her masters and she asked me to buy and manumit her. I agreed to it, but Buraira told me that her masters would not sell her unless her Wala' was for them." `Aisha said, "I am not in need of that." When the Prophet heard that, or he was told about it, he asked `Aisha about it. `Aisha mentioned what Buraira had told her. The Prophet said, "Buy and manumit her and let them stipulate whatever they like." So, `Aisha bought and manumitted her and her masters stipulated that her Wala' should be for them." The Prophet;, said, "The Wala' will be for the liberator even if they stipulated a hundred conditions."
Hadith Reference Sahih Bukhari / The Book of Al-Mukatab / Hadith: 2565
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة