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 ﷺ "لاَ يَجْزِي وَلَدٌ وَالِدًا إِلاَّ أَنْ يَجِدَهُ مَمْلُوكًا فَيَشْتَرِيَهُ فَيُعْتِقَهُ" ((رواه مسلم)).