The Prophet ﷺ forbade a man to eat with his left hand.
حدثنا عفان أخبرنا خالد بن الحارث حدثنا هشام بن حسان عن عبد الله بن دهقان
أن النبي ﷺ نهى أن يأكل الرجل بشماله
Its isnad is sahih. Khalid bin Harith is trustworthy and reliable, and the hadith has already appeared at 13031.