حَدَّثَنَا وَكِيعٌ عَنْ سُفْيَانَ عَنْ فِرَاسٍ عَنْ أَبِي صَالِحٍ عَنْ زَاذَانَ عَنِ ابْنِ عُمَرَ أَنَّهُ دَعَا غُلَامًا لَهُ فَأَعْتَقَهُ فَقَالَ مَا لِي مِنْ أَجْرِهِ مِثْلُ هَذَا لِشَيْءٍ رَفَعَهُ مِنْ الْأَرْضِ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ مَنْ لَطَمَ غُلَامَهُ فَكَفَّارَتُهُ عِتْقُهُ
مسند امام احمد بن حنبل · Hadith 4784
It was narrated from Ibn Umar that he called a slave of his and manumitted him. And he said: I am not going to get reward (for manumitting him) even as much as this - referring to something that he had picked up off the ground - I heard the Messenger of Allah (PBUH) say: "Whoever slaps his slave or beats him, his expiation is to manumit him,"
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020