وَلا تَأكُلوا مِمّا لَم يُذكَرِ اسمُ اللَّهِ عَلَيهِ وَإِنَّهُ لَفِسقٌ ۗ وَإِنَّ الشَّياطينَ لَيوحونَ إِلىٰ أَولِيائِهِم لِيُجادِلوكُم ۖ وَإِن أَطَعتُموهُم إِنَّكُم لَمُشرِكونَ

Don’t eat from what God’s name hasn’t been mentioned upon, for it’s sinful. The devils inspire their allies to argue with you. If you were to obey them, you would be polytheists.