Hadith 281

“Messenger of Allah (ﷺ) was sitting while a man was eating food. That man did not mention the Name of Allah till only a morsel of food was left. When he raised it to his mouth, he said: "Bismillah Awwalahu wa akhirahu ." Messenger of Allah (ﷺ) smiled at this and said, "Satan had been eating with him but when he mentioned the Name of Allah, Satan vomited all that was in his stomach.”

before commencing to eat; With the Name of Allah, in the beginning and in the end