Surah Al-Waqi'ah, verse 78

وَإِنَّهُۥ لَقَسَمٌۭ لَّوْ تَعْلَمُونَ عَظِيمٌ ﴿٧٦﴾

And indeed, it is an oath - if you could know - [most] great.

إِنَّهُۥ لَقُرْءَانٌۭ كَرِيمٌۭ ﴿٧٧﴾

Indeed, it is a noble Qur’ān.

لَّا يَمَسُّهُۥٓ إِلَّا ٱلْمُطَهَّرُونَ ﴿٧٩﴾

None touch it except the purified [i.e., the angels].

تَنزِيلٌۭ مِّن رَّبِّ ٱلْعَـٰلَمِينَ ﴿٨٠﴾

[It is] a revelation from the Lord of the worlds.