When a man enters his house and mention Allah’s name on entering and on his food, the devil says: You have no place to spend the night and no evening meal; but when he enters without mentioning Allah’s name on entering, the devil says: You have found a place to spend the night, and when he does not mention Allah’s name at his food, he says: You have found a place to spend the night and an evening meal.  

سَمِعَ النَّبِيَّ ﷺ يَقُولُ إِذَا دَخَلَ الرَّجُلُ بَيْتَهُ فَذَكَرَ اللَّهَ عِنْدَ دُخُولِهِ وَعِنْدَ طَعَامِهِ قَالَ الشَّيْطَانُ لاَ مَبِيتَ لَكُمْ وَلاَ عَشَاءَ وَإِذَا دَخَلَ فَلَمْ يَذْكُرِ اللَّهَ عِنْدَ دُخُولِهِ قَالَ الشَّيْطَانُ أَدْرَكْتُمُ الْمَبِيتَ فَإِذَا لَمْ يَذْكُرِ اللَّهَ عِنْدَ طَعَامِهِ قَالَ أَدْرَكْتُمُ الْمَبِيتَ وَالْعَشَاءَ  

The devil considers the food when Allah’s name is not mentioned over it, and he brought his nomad Arab that it might be lawful by means of him, so I seized his hand: then he brought this girl that it might be lawful by means of her, so I seized her hand. By Him in Whose hand my soul is, His hand is in my hand along with their hands.  

كُنَّا إِذَا حَضَرْنَا مَعَ رَسُولِ اللَّهِ ﷺ طَعَامًا لَمْ يَضَعْ أَحَدُنَا يَدَهُ حَتَّى يَبْدَأَ رَسُولُ اللَّهِ ﷺ وَإِنَّا حَضَرْنَا مَعَهُ طَعَامًا فَجَاءَ أَعْرَابِيٌّ كَأَنَّمَا يُدْفَعُ فَذَهَبَ لِيَضَعَ يَدَهُ فِي الطَّعَامِ فَأَخَذَ رَسُولُ اللَّهِ ﷺ بِيَدِهِ ثُمَّ جَاءَتْ جَارِيَةٌ كَأَنَّمَا تُدْفَعُ فَذَهَبَتْ لِتَضَعَ يَدَهَا فِي الطَّعَامِ فَأَخَذَ رَسُولُ اللَّهِ ﷺ بِيَدِهَا وَقَالَ إِنَّ الشَّيْطَانَ لَيَسْتَحِلُّ الطَّعَامَ الَّذِي لَمْ يُذْكَرِ اسْمُ اللَّهِ عَلَيْهِ وَإِنَّهُ جَاءَ بِهَذَا الأَعْرَابِيِّ يَسْتَحِلُّ بِهِ فَأَخَذْتُ بِيَدِهِ وَجَاءَ بِهَذِهِ الْجَارِيَةِ يَسْتَحِلُّ بِهَا فَأَخَذْتُ بِيَدِهَا فَوَالَّذِي نَفْسِي بِيَدِهِ إِنَّ يَدَهُ لَفِي يَدِي مَعَ أَيْدِيهِمَا  

The Messenger of Allah ﷺ said: When one of you eats, he should mention Allah's name; if he forgets to mention Allah's name at the beginning, he should say: "In the name of Allah at the beginning and at the end of it."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِذَا أَكَلَ أَحَدُكُمْ فَلْيَذْكُرِ اسْمَ اللَّهِ تَعَالَى فَإِنْ نَسِيَ أَنْ يَذْكُرَ اسْمَ اللَّهِ تَعَالَى فِي أَوَّلِهِ فَلْيَقُلْ بِسْمِ اللَّهِ أَوَّلَهُ وَآخِرَهُ  

Umayyah was sitting and a man was eating. He did not mention Allah's name until there remained the last morsel. When he raised it to his mouth, he said: In the name of Allah at the beginning and at the end of it. The Prophet ﷺ laughed and said: The devil kept eating along with him, but when he mentioned Allah's name, he vomited what was in his belly. Abu Dawud: Jabir bin Subh is grandfather of Sulaiman bin Harb from his mother's side.  

عَنْ عَمِّهِ أُمَيَّةَ بْنِ مَخْشِيٍّ وَكَانَ مِنْ أَصْحَابِ رَسُولِ اللَّهِ ﷺ قَالَ كَانَ رَسُولُ اللَّهِ ﷺ جَالِسًا وَرَجُلٌ يَأْكُلُ فَلَمْ يُسَمِّ حَتَّى لَمْ يَبْقَ مِنْ طَعَامِهِ إِلاَّ لُقْمَةٌ فَلَمَّا رَفَعَهَا إِلَى فِيهِ قَالَ بِسْمِ اللَّهِ أَوَّلَهُ وَآخِرَهُ فَضَحِكَ النَّبِيُّ ﷺ ثُمَّ قَالَ مَا زَالَ الشَّيْطَانُ يَأْكُلُ مَعَهُ فَلَمَّا ذَكَرَ اسْمَ اللَّهِ ﷻ اسْتَقَاءَ مَا فِي بَطْنِهِ