Musnad Ahmad 33:53

'Abd al-Razzaq narrated to us, Ma'mar informed us, from Yahya ibn Abi Kathir, from Muhammad ibn 'Abd al-Rahman ibn Thawban, from Jabir ibn 'Abd Allah, who said: The Prophet, peace and blessings of Allah be upon him, saw a donkey that had been branded on its face, so he said: "May Allah curse the one who did this."