رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 313
The Book of Miscellany
Kind Treatment towards Parents and establishment of the ties of Blood Relationship
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)).
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].
Riyad as-Salihin, 313