It is narrated from Sayyiduna Uqbah bin Amir al-Juhani (may Allah be pleased with him) that the Prophet of Allah (peace and blessings be upon him) saw Subay'ah al-Aslamiyyah eating with her left hand, so he said: "What is wrong with her that she eats with her left hand?" She said: O Prophet of Allah! There is a sore on my right hand. He (peace and blessings be upon him) said to her: "Even so (do not eat with the left hand); (may she die) the death of a cow" — then the plague struck her and she died.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14968