Sahih Muslim Book - 12, Hadith - 2317

حَدَّثَنِى هَارُونُ بْنُ سَعِيدٍ الأَيْلِىُّ حَدَّثَنَا ابْنُ وَهْبٍ أَخْبَرَنِى عَمْرٌو عَنْ بُكَيْرٍ عَنْ كُرَيْبٍ عَنْ مَيْمُونَةَ بِنْتِ الْحَارِثِ أَنَّهَا أَعْتَقَتْ وَلِيدَةً فِى زَمَانِ رَسُولِ اللَّهِ -صلى الله عليه وسلم- فَذَكَرَتْ ذَلِكَ لِرَسُولِ اللَّهِ -صلى الله عليه وسلم- فَقَالَ « لَوْ أَعْطَيْتِهَا أَخْوَالَكِ كَانَ أَعْظَمَ لأَجْرِكِ ».

It was narrated from Maimunah bint Al-Harith that she set free a slave girl at the time of the Messenger of Allah (SAW) and mentioned that to the Messenger of Allah (SAW) who said: “If you had given her to your maternal uncles that would have brought you a greater reward.”