that Ibn ʿUmar disliked the branding of animals on the face. Ibn ʿUmar said, "The Prophet ﷺ forbade beating (animals) on the face."  

وَقَالَ ابْنُ عُمَرَ نَهَى النَّبِيُّ ﷺ أَنْ تُضْرَبَ  

I brought a brother of mine to the Prophet ﷺ to do Tahnik for him while the Prophet ﷺ was in a sheep fold of his, and I saw him branding a sheep. (The sub-narrator said: I think Anas said, branding it on the ear.)  

دَخَلْتُ عَلَى النَّبِيِّ ﷺ بِأَخٍ لِي يُحَنِّكُهُ وَهْوَ فِي مِرْبَدٍ لَهُ فَرَأَيْتُهُ يَسِمُ شَاةً حَسِبْتُهُ قَالَ فِي آذَانِهَا