Musannaf Ibn Abi Shayba 16:216

Abu Bakr narrated to us, he said: Ibn Numayr narrated to us, from Abd al-Malik ibn Abi Sulayman, from Abu al-Zubayr, from Jabir, he said: The Messenger of Allah (may Allah bless him and grant him peace) forbade that any one of us should eat with his left hand.