Riyad as-Salihin 313
Abu Hurairah (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) said, "No son can repay (the kindness shown by his father) unless he finds him a slave and buys him and emancipates him". [Muslim] .
عَنْ أَبِي هُرَيْرَةَ رضي الله عنه، قَالَ: قَالَ رَسُولُ الله صلى الله عليه وسلم ‏
"‏لاَ يَجْزِي وَلَدٌ وَالِدًا إِلاَّ أَنْ يَجِدَهُ مَمْلُوكًا فَيَشْتَرِيَهُ فَيُعْتِقَهُ‏" ‏ ‏(‏‏(‏رواه مسلم‏)‏‏)‏‏.‏