Hadith on Freedom: The expiation for the sin of beating a slave is to free him

Zadhan reported: Ibn Umar called his boy and he found traces of a beating upon his back. Ibn Umar said to him, “I have hurt you.” The boy said no, but Ibn Umar said, “You are free.” Then he took hold of some dust from the earth and he said, “There is no reward for me, not even equal to this weight. I heard the Messenger of Allah, peace and blessing be upon him, say: Whoever strikes his slave sharply or slaps him, then the expiation for the sin is to emancipate him.”

Source: Ṣaḥīḥ Muslim 1657

Grade: Sahih (authentic) according to Muslim

عَنْ زَاذَانَ أَنَّ ابْنَ عُمَرَ دَعَا بِغُلَامٍ لَهُ فَرَأَى بِظَهْرِهِ أَثَرًا فَقَالَ لَهُ أَوْجَعْتُكَ قَالَ لَا قَالَ فَأَنْتَ عَتِيقٌ قَالَ ثُمَّ أَخَذَ شَيْئًا مِنْ الْأَرْضِ فَقَالَ مَا لِي فِيهِ مِنْ الْأَجْرِ مَا يَزِنُ هَذَا إِنِّي  سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ مَنْ ضَرَبَ غُلَامًا لَهُ حَدًّا لَمْ يَأْتِهِ أَوْ لَطَمَهُ فَإِنَّ كَفَّارَتَهُ أَنْ يُعْتِقَهُ

1657 صحيح مسلم كتاب الأيمان باب صحبة المماليك وكفارة من لطم عبده