Muthanna bin Abdul-Rahman reported,

I accompanied him to Wasit. He used to mention the name of Allah at the beginning of his meal, and with his last morsel he would say, "In the name of Allah, at its beginning and its end."So I asked him, "You say the name of Allah at the start of your meal, but what about your saying at the end of it, 'In the name of Allah, at its beginning and its end'?"He replied, "Let me tell you about that. My grandfather Umaya bin Makhshi, who was among the companions of the Prophet ﷺ, told me that he heard him say, A man was eating while the Prophet ﷺ was watching, and he did not mention the name of Allah. When only one morsel of his food remained, he said, 'In the name of Allah, at its beginning and its end.' The Prophet ﷺ then said, 'Satan kept on eating with him until he mentioned the name of Allah, then nothing remained in his stomach except that he vomited it out.'"

حدثنا علي بن عبد الله حدثنا يحيى بن سعيد حدثنا جابر بن صبح قال حدثني

المثنى بن عبد الرحمن الخزاعي

وصحبته إلى واسط وكان يسمي في أول طعامه وفي آخر لقمة يقول بسم الله في أوله وآخره فقلت له إنك تسمي في أول ما تأكل أرأيت قولك في آخر ما تأكل بسم الله أوله وآخره قال أخبرك عن ذلك إن جدي أمية بن مخشي وكان من أصحاب النبي ﷺ سمعته يقول إن رجلا كان يأكل والنبي ﷺ ينظر فلم يسم حتى كان في آخر طعامه لقمة فقال بسم الله أوله وآخره فقال النبي ﷺ ما زال الشيطان يأكل معه حتى سمى فلم يبق في بطنه شيء إلا قاءه