عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنِ الْحُسَيْنِ بْنِ عُثْمَانَ عَنْ رَجُلٍ عَنْ أَبِي عَبْدِ اللَّهِ ( عليه السلام ) قَالَ إِذَا أَكَلْتَ الطَّعَامَ فَقُلْ بِسْمِ اللَّهِ فِي أَوَّلِهِ وَ آخِرِهِ فَإِنَّ الْعَبْدَ إِذَا سَمَّى قَبْلَ أَنْ يَأْكُلَ لَمْ يَأْكُلْ مَعَهُ الشَّيْطَانُ وَ إِذَا لَمْ يُسَمِّ أَكَلَ مَعَهُ الشَّيْطَانُ فَإِذَا سَمَّى بَعْدَ مَا يَأْكُلُ وَ أَكَلَ الشَّيْطَانُ مَعَهُ تَقَيَّأَ الشَّيْطَانُ مَا كَانَ أَكَلَ .
11. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from al-Husayn ibn ‘Uthman from a man who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘When you eat food say, ‘In the name of Allah’ at its beginning and at its end’; when a servant says it before he eats, Satan cannot eat with him; but if he did not mention the name of Allah, Satan eats with him. If he then says, ‘In the name of Allah’ after he begins and Satan had been eating with him, Satan then throws up what he had eaten.’”