ʿAisha intended to buy Barira (a slave-girl) in order to manumit her and her masters intended to put the condition that her Al-wala would be for them. ʿAisha mentioned that to the Prophet ﷺ who said to her, "Buy her, as the "Wala" is for the manumitted." Once some meat was presented to the Prophet ﷺ and ʿAisha said to him, "This (meat) was given in charity to Barira." He said, "It is an object of charity for Barira but a gift for us."
أَنْ يَشْتَرِطُوا وَلاَءَهَا فَذَكَرَتْ عَائِشَةُ لِلنَّبِيِّ ﷺ فَقَالَ لَهَا النَّبِيُّ ﷺ اشْتَرِيهَا فَإِنَّمَا الْوَلاَءُ لِمَنْ أَعْتَقَ قَالَتْ وَأُتِيَ النَّبِيُّ ﷺ بِلَحْمٍ فَقُلْتُ هَذَا مَا تُصُدِّقَ بِهِ عَلَى بَرِيرَةَ فَقَالَ هُوَ لَهَا صَدَقَةٌ وَلَنَا هَدِيَّةٌ