Musnad Ahmad 5:726

'Abdullah narrated to us, Abu Khaythama narrated to me, 'Abdah bin Sulayman narrated to us, from Sa'id, from Qatadah, from Jurayy bin Kulayb al-Nahdi, from 'Ali, who said: "The Messenger of Allah (ﷺ) forbade sacrificing an animal with a slit horn or a slit ear."