Silsilat al-Ahadith al-Sahihah

Sayyiduna Jabir (may Allah be pleased with him) narrates that a donkey whose face had been branded was brought past the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) said: "Has the report not reached you that I have cursed the one who brands an animal on its face or strikes it on its face?" Then the Prophet (peace and blessings be upon him) forbade doing so.