إِنَّ ٱلَّذِينَ ءَامَنُوا۟ وَهَاجَرُوا۟ وَجَـٰهَدُوا۟ بِأَمْوَٰلِهِمْ وَأَنفُسِهِمْ فِى سَبِيلِ ٱللَّهِ وَٱلَّذِينَ ءَاوَوا۟ وَّنَصَرُوٓا۟ أُو۟لَـٰٓئِكَ بَعْضُهُمْ أَوْلِيَآءُ بَعْضٍۢ ۚ وَٱلَّذِينَ ءَامَنُوا۟ وَلَمْ يُهَاجِرُوا۟ مَا لَكُم مِّن وَلَـٰيَتِهِم مِّن شَىْءٍ حَتَّىٰ يُهَاجِرُوا۟ ۚ وَإِنِ ٱسْتَنصَرُوكُمْ فِى ٱلدِّينِ فَعَلَيْكُمُ ٱلنَّصْرُ إِلَّا عَلَىٰ قَوْمٍۭ بَيْنَكُمْ وَبَيْنَهُم مِّيثَـٰقٌۭ ۗ وَٱللَّهُ بِمَا تَعْمَلُونَ بَصِيرٌۭ
“Those who believed, Emigrated, and strove with their wealth and lives in the Cause of Allah, as well as those who gave them shelter and help — they are truly guardians of one another. As for those who believed but did not Emigrate, you have no obligations to them until they Emigrate. But if they seek your help [against persecution] in faith, it is your obligation to help them, except against people bound with you in a treaty. Allah is All-Seeing of what you do.”
Surah al-Anfal was revealed on the plains of Badr regarding the battle and its aftermath.