Riyad as-Salihin 1608

An ass with a brand on the face happened to pass before the Prophet (sallallahu alayhi wa sallam). Thereupon he said, “May Allah curse the one who has branded it (on the face).”. Another narration in Muslim is: “The Messenger of Allah (sallallahu alayhi wa sallam) prohibited us from hitting across the face and branding on the face (of an animal).”