Mentioning the name of Allah when slaughtering
حَدَّثَنَا عَمْرُو بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا وَكِيعٌ، عَنْ إِسْرَائِيلَ، عَنْ سِمَاكٍ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، {إِنَّ الشَّيَاطِينَ لَيُوحُونَ إِلَى أَوْلِيَائِهِمْ} قَالَ كَانُوا يَقُولُونَ مَا ذُكِرَ عَلَيْهِ اسْمُ اللَّهِ فَلاَ تَأْكُلُوا وَمَا لَمْ يُذْكَرِ اسْمُ اللَّهِ عَلَيْهِ فَكُلُوهُ . فَقَالَ اللَّهُ عَزَّ وَجَلَّ {وَلاَ تَأْكُلُوا مِمَّا لَمْ يُذْكَرِ اسْمُ اللَّهِ عَلَيْهِ} .
It was narrated from Ibn ‘Abbas: “And certainly, the Shayatin (devils) do inspire their friends (from mankind).” [6:121] He said: “They used to say: ‘Whatever the Name of Allah has been mentioned over, do not eat it, and whatever the Name of Allah has not been mentioned over, eat it.’ Then Allah said: “Eat not of that over which Allah’s Name has not been pronounced.’” [6:121]