Sahih Muslim Book - 20, Hadith - 3777

وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ حَدَّثَنَا لَيْثٌ عَنِ ابْنِ شِهَابٍ عَنْ عُرْوَةَ أَنَّ عَائِشَةَ أَخْبَرَتْهُ أَنَّ بَرِيرَةَ جَاءَتْ عَائِشَةَ تَسْتَعِينُهَا فِى كِتَابَتِهَا وَلَمْ تَكُنْ قَضَتْ مِنْ كِتَابَتِهَا شَيْئًا فَقَالَتْ لَهَا عَائِشَةُ ارْجِعِى إِلَى أَهْلِكِ فَإِنْ أَحَبُّوا أَنْ أَقْضِىَ عَنْكِ كِتَابَتَكِ وَيَكُونَ وَلاَؤُكِ لِى. فَعَلْتُ فَذَكَرَتْ ذَلِكَ بَرِيرَةُ لأَهْلِهَا فَأَبَوْا وَقَالُوا إِنْ شَاءَتْ أَنْ تَحْتَسِبَ عَلَيْكِ فَلْتَفْعَلْ وَيَكُونَ لَنَا وَلاَؤُكِ. فَذَكَرَتْ ذَلِكَ لِرَسُولِ اللَّهِ -صلى الله عليه وسلم- فَقَالَ لَهَا رَسُولُ اللَّهِ -صلى الله عليه وسلم- « ابْتَاعِى فَأَعْتِقِى. فَإِنَّمَا الْوَلاَءُ لِمَنْ أَعْتَقَ ». ثُمَّ قَامَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- فَقَالَ « مَا بَالُ أُنَاسٍ يَشْتَرِطُونَ شُرُوطًا لَيْسَتْ فِى كِتَابِ اللَّهِ مَنِ اشْتَرَطَ شَرْطًا لَيْسَ فِى كِتَابِ اللَّهِ فَلَيْسَ لَهُ وَإِنْ شَرَطَ مِائَةَ مَرَّةٍ شَرْطُ اللَّهِ أَحَقُّ وَأَوْثَقُ ».

It was narrated from 'Urwah that 'Aishah told him that Barirah came to her seeking her help with her contract of manumission, as she had not paid off anything stipulated in her contract of manumission. 'Aishah said to her: "Go back to your masters, and if they like, I will pay off your contract of manumission on your behalf, and the right of inheritance (Al-Wala') will be mine, then I will do it." Barirah mentioned that to her masters, but they refused and said: "If she wishes to do that for you, seeking reward with Allah, then let her do it, but the right of inheritance will be ours." She ('Aishah) mentioned that to the Messenger of Allah (s.a.w) and the Messenger of Allah (s.a.w) said to her: "Buy her and manumit her, for the right of inheritance belongs to the one who manumits (the slave)." Then the Messenger of Allah (s.a.w) stood up and said: "What is the matter with people who stipulate conditions that are not in the Book of Allah? Whoever stipulates a condition that is not in the Book of Allah has no right, even if he stipulates a hundred times. The conditions stipulated by Allah are more valid and carry more weight."