﴿ بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ سُورَةٌ أَنزَلْنَٰهَا وَفَرَضْنَٰهَا وَأَنزَلْنَا فِيهَآ ءَايَٰتٍۭ بَيِّنَٰتٍۢ لَّعَلَّكُمْ تَذَكَّرُونَ ﴾

“A Surah [is this] which We have bestowed from on high, and which We have laid down in plain terms; and in it have We bestowed from on high messages which are clear [in themselves], so that you might keep [them] in mind.”

Please check ayah 24:2 for complete tafsir.