Surat Al Anfal: (47-48)

{وَلاَ تَكُونُواْ كَالَّذِينَ خَرَجُواْ مِن دِيَارِهِم بَطَراً وَرِئَاء النَّاسِ وَيَصُدُّونَ عَن سَبِيلِ اللّهِ وَاللّهُ بِمَا يَعْمَلُونَ مُحِيطٌ} [الأنفال: 47]

47- O believers, do not be like the polytheists who left Makkah out of pride so that people would praise them and describe them with bravery and generosity while they were preventing people from declaring the truth and embracing Islam. They refused to go back to Makkah after the caravan had been rescued until they drink wine beside the well of Badr, listen to singers, slaughter camels and feed the people. However, Allah replaced their wine with their blood, and with weepers instead of singers, and returned back with sadness, defeat, and the killing of their family and companions, so do not be like them. Let your going be for the sake of Allah, pushing falsehood, and warding off aggression. Allah is All-Acquainted with the actions of polytheists and their corruption, and knows the hatred and enmity which they hearts conceal against Muslims.

{وَإِذْ زَيَّنَ لَهُمُ الشَّيْطَانُ أَعْمَالَهُمْ وَقَالَ لاَ غَالِبَ لَكُمُ الْيَوْمَ مِنَ النَّاسِ وَإِنِّي جَارٌ لَّكُمْ فَلَمَّا تَرَاءتِ الْفِئَتَانِ نَكَصَ عَلَى عَقِبَيْهِ وَقَالَ إِنِّي بَرِيءٌ مِّنكُمْ إِنِّي أَرَى مَا لاَ تَرَوْنَ إِنِّيَ أَخَافُ اللّهَ وَاللّهُ شَدِيدُ الْعِقَابِ} [الأنفال: 48]

48- O Messenger, remind the believers when Satan cast in the hearts of polytheists and encouraged them to go out, telling them that no one will be able to defeat you in the battle of Badr because of their number and power against your weakness and few number, and I am your helper.

However, when the two parties met and Satan looked at the reinforcement of angels, he fled away while saying to his guardians: I am free of you and I shall not help you in this war because I see the reinforcement of angels which you do not see. Indeed, I fear that Allah would destroy me, for He is severe in His Punishment. So, Satan failed them, did not keep his promise, and left them meet their fate alone.