Iyas bin Salamah bin al-Akwa' narrates from his father (Sayyiduna Salamah bin al-Akwa' (may Allah be pleased with him)) that the Messenger of Allah (peace and blessings be upon him) saw Bishr bin Ra'i al-'Ir eating with his left hand. He (peace and blessings be upon him) said: "Eat with your right hand." He said: "I cannot." He (peace and blessings be upon him) said: "May you not be able to." After that his hand never reached his mouth.
(b) In the narration of al-Sulami: his (right) hand never reached (his mouth).
(c) In Sahih Muslim, through another chain, Ikrimah (may Allah have mercy on him) relates that it was only pride that prevented him.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14611