Abu Salih al-Hanafi narrates from one of the Companions of the Prophet (peace and blessings be upon him), whom I think was Sayyiduna Abdullah bin Umar (may Allah be pleased with them both), that he said: I heard the Prophet (peace and blessings be upon him) saying: "Whoever mutilates a living creature and then does not repent of that deed, Allah Almighty will mutilate him on the Day of Resurrection."
Ahmad recorded it, and its narrators are thiqat (trustworthy).