It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever mutilates a living being and does not repent, on the Day of Resurrection Allah Almighty will do the same to him."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5956
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد ضعيف لضعف شريك.