وَحَدَّثَنِي سَلَمَةُ بْنُ شَبِيبٍ، حَدَّثَنَا الْحَسَنُ بْنُ أَعْيَنَ، حَدَّثَنَا مَعْقِلٌ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم مَرَّ عَلَيْهِ حِمَارٌ قَدْ وُسِمَ فِي وَجْهِهِ فَقَالَ ‏ "‏ لَعَنَ اللَّهُ الَّذِي وَسَمَهُ ‏"‏ ‏.‏

Jabir reported that there happened to pass before Allah's Apostle (ﷺ) an ass the face of which had been cauterised, whereupon he said: Allah has cursed one who has cauterised it (on the face).

— Sahih Muslim, Book 37: The Book of Clothes and Adornment, Hadith #5409