his grandfather came to the Prophet ﷺ and he had castrated a slave of his. The Prophet ﷺ manumitted the slave in compensation for having been mutilated.
أَنَّهُ قَدِمَ عَلَى النَّبِيِّ ﷺ وَقَدْ خَصَى غُلاَمًا لَهُ فَأَعْتَقَهُ النَّبِيُّ ﷺ بِالْمُثْلَةِ