Surah Saba, Verse 21

وَمَا كَانَ لَهُۥ عَلَيۡهِم مِّن سُلۡطَٰنٍ إِلَّا لِنَعۡلَمَ مَن يُؤۡمِنُ بِٱلۡأٓخِرَةِ مِمَّنۡ هُوَ مِنۡهَا فِي شَكّٖۗ وَرَبُّكَ عَلَىٰ كُلِّ شَيۡءٍ حَفِيظٞ٢١

wamā kāna lahu ʿalayhim min sul'ṭānin illā linaʿlama man yu'minu bil-ākhirati mimman huwa min'hā fī shakkin warabbuka ʿalā kulli shayin ḥafīẓun

And he had over them no authority except [it was decreed] that We might make evident who believes in the Hereafter from who is thereof in doubt. And your Lord, over all things, is Guardian.