Surah Al-Anfal Verse 17 - English Translation by Maududi
Surah Al-Anfalفَلَمۡ تَقۡتُلُوهُمۡ وَلَٰكِنَّ ٱللَّهَ قَتَلَهُمۡۚ وَمَا رَمَيۡتَ إِذۡ رَمَيۡتَ وَلَٰكِنَّ ٱللَّهَ رَمَىٰ وَلِيُبۡلِيَ ٱلۡمُؤۡمِنِينَ مِنۡهُ بَلَآءً حَسَنًاۚ إِنَّ ٱللَّهَ سَمِيعٌ عَلِيمٞ
So the fact is that it was not you, but it was Allah Who killed them; and it was not you when you threw [sand at them], but it was Allah Who threw it, (and the believers were employed for the task) that He might cause the believers to successfully pass through this test. Allah is All-Hearing, All-Knowing