Quran 24:1

سُورَةٌ أَنزَلۡنَـٰهَا وَفَرَضۡنَـٰهَا وَأَنزَلۡنَا فِيہَآ ءَايَـٰتِۭ بَيِّنَـٰتٍ۬ لَّعَلَّكُمۡ تَذَكَّرُونَ ١

A Sura that we have sent down, and we have decreed as law. We have revealed in it clear revelations, that you may take heed.