Jabir reported that Allah's Messenger (ﷺ) forbade (the animals to be beaten) on the face or cauterisation on the face.
This hadith has been reported on the authority of Jabir b. 'Abdullah through another chain of transmitters.
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).
Ibn Abbas reported that Allah's Messenger (ﷺ) saw an ass which had been cauterised on the face. He disapproved of it saying
By Allah, I do not cauterise (the animal) but on a part at a distance from the face, and commanded (for the cauterisation) of his ass and it was cauterised on the buttocks and he was the first to cauterise on the buttocks.