Arabic text
وَلَوۡ نَشَآءُ لَأَرَيۡنَٰكَهُمۡ فَلَعَرَفۡتَهُم بِسِيمَٰهُمۡۚ وَلَتَعۡرِفَنَّهُمۡ فِي لَحۡنِ ٱلۡقَوۡلِۚ وَٱللَّهُ يَعۡلَمُ أَعۡمَٰلَكُمۡ
And if We willed, We could show them to you, and you would know them by their mark; but you will surely know them by the tone of [their] speech. And Allāh knows your deeds.