Surah Aali Imran (The Family of Imran), Verse 155

اِنَّ الَّذِیْنَ تَوَلَّوْا مِنْكُمْ یَوْمَ الْتَقَی الْجَمْعٰنِ اِنَّمَا اسْتَزَلَّهُمُ الشَّیْطٰنُ بِبَعْضِ مَا كَسَبُوْا وَلَقَدْ عَفَا اللّٰهُ عَنْهُمْ اِنَّ اللّٰهَ غَفُوْرٌ حَلِیْمٌ 

Innal lazeena tawallaw minkum yawmal taqal jam'aani innamas tazallahumush Shaitaanu biba'di maa kasaboo wa laqad 'afal laahu 'anhum; innnal laaha Ghafoorun Haleem

“Those of you who turned back on the day the two hosts Met,-it was Satan who caused them to fail, because of some (evil) they had done. But Allah Has blotted out (their fault): For Allah is Oft-Forgiving, Most Forbearing.”

Quran 3:155 (Yusuf Ali Translation)