Musnad Ahmad 333:2

Waki’ narrated to us, he said: ‘Ikrimah ibn ‘Ammar narrated to us, from Iyas ibn Salamah ibn al-Akwa’, from his father, that the Prophet, peace and blessings of Allah be upon him, saw a man eating with his left hand, so he said: “Eat with your right hand.” He said: “I cannot.” He said: “May you not be able to.” He said: So he was never able to raise it to his mouth again.