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.
English Transliteration
Wama kana lahu AAalayhim min sultanin illa linaAAlama man yuminu bialakhirati mimman huwa minha fee shakkin warabbuka AAala kulli shayin hafeethun
Tafsir of Verse 21
Yet he had no authority over them, but that We might know him who believed in the Hereafter from him who was in doubt thereof Thy Lord is Guardian over everything.
But he had no authority over them,- except that We might test the man who believes in the Hereafter from him who is in doubt concerning it: and thy Lord doth watch over all things.