Divine revelation and its authenticity

تَنزِيلَ ٱلْعَزِيزِ ٱلرَّحِيمِ

[This is] a revelation of the Exalted in Might, the Merciful,

تَنزِيلُ ٱلْكِتَـٰبِ مِنَ ٱللَّهِ ٱلْعَزِيزِ ٱلْعَلِيمِ

The revelation of the Book [i.e., the Qur’ān] is from Allāh, the Exalted in Might, the Knowing,

تَنزِيلٌ مِّن رَّبِّ ٱلْعَـٰلَمِينَ

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

وَمَا هُوَ بِٱلْهَزْلِ

And it is not amusement.