ذَٰلِكُمْ وَأَنَّ ٱللَّهَ مُوهِنُ كَيْدِ ٱلْكَـٰفِرِينَ
“And you [believers] did not kill them, but it was Allah who killed them. And you threw not [O Prophet] when you threw, but it was Allah who threw, rendering the believers a great favor. Surely, Allah is All-Hearing, All-Knowing. As such, Allah frustrates the evil plans of the disbelievers.”
Surah al-Anfal was revealed on the plains of Badr regarding the battle and its aftermath.