explaining the verse "But the evil ones ever inspire their friend to contend with you" They used to say: Do not eat which Allah killed, but eat which you slaughtered. So Allah revealed the verse: "Eat not of (meats) on which Allah's name hath not been pronounced"...to the end of the verse.  

عَنِ ابْنِ عَبَّاسٍ فِي قَوْلِهِ { وَإِنَّ الشَّيَاطِينَ لَيُوحُونَ إِلَى أَوْلِيَائِهِمْ } يَقُولُونَ مَا ذَبَحَ اللَّهُ فَلاَ تَأْكُلُوا وَمَا ذَبَحْتُمْ أَنْتُمْ فَكُلُوا فَأَنْزَلَ اللَّهُ ﷻ { وَلاَ تَأْكُلُوا مِمَّا لَمْ يُذْكَرِ اسْمُ اللَّهِ عَلَيْهِ }  

"Some people came to the Prophet ﷺ and they said: 'O Messenger of Allah! Why is it that we can eat what we kill but we can not eat what Allah has killed?' So Allah revealed: So eat of that on which Allah's Name has been mentioned if you are indeed believers in His Ayat..." up to His saying: ...And if you obey them, then you would indeed be idolaters (6:121)."  

أَتَى أُنَاسٌ النَّبِيَّ ﷺ فَقَالُوا يَا رَسُولَ اللَّهِ أَنَأْكُلُ مَا نَقْتُلُ وَلاَ نَأْكُلُ مَا يَقْتُلُ اللَّهُ فَأَنْزَلَ اللَّهُ ( فَكُلُوا مِمَّا ذُكِرَ اسْمُ اللَّهِ عَلَيْهِ إِنْ كُنْتُمْ بِآيَاتِهِ مُؤْمِنِينَ ) إِلَى قَوْلِهِ (وَإِنْ أَطَعْتُمُوهُمْ إِنَّكُمْ لَمُشْرِكُونَ )  

“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] (Using translation from Ibn Mājah 3173)   

«يَقُولُونَ مَا ذُبِحَ فَذُكِرَ اسْمُ اللَّهِ عَلَيْهِ فَلَا تَأْكُلُوهُ وَمَا لَمْ يُذْكَرِ اسْمُ اللَّهِ عَلَيْهِ فَكُلُوهُ» فَقَالَ اللَّهُ ﷻ {وَلَا تَأْكُلُوا مِمَّا لَمْ يُذْكَرِ اسْمُ اللَّهِ عَلَيْهِ} [الأنعام 121]  

explaining the verse "But the evil ones ever inspire their friend to contend with you" They used to say: Do not eat which Allah killed, but eat which you slaughtered. So Allah revealed the verse: "Eat not of (meats) on which Allah's name hath not been pronounced"...to the end of the verse. (Using translation from Abū Dāʾūd 2818)   

«إِنَّ الشَّيَاطِينَ لَيُوحُونَ إِلَى أَوْلِيَائِهِمْ فَيَقُولُونَ مَا ذُبِحَ لِلَّهِ فَلَا تَأْكُلُوهُ وَمَا ذَبَحْتُمْ أَنْتُمْ فَكُلُوهُ» فَأَنْزَلَ اللَّهُ تَبَارَكَ وَتَعَالَى {وَلَا تَأْكُلُوا مِمَّا لَمْ يُذْكَرِ اسْمُ اللَّهِ عَلَيْهِ} [الأنعام 121]