Fussilat 41:1

تَنزِيلٌ مِّنَ الرَّحْمَـٰنِ الرَّحِيمِ

[This is] a revelation from the Entirely Merciful, the Especially Merciful -

كِتَابٌ فُصِّلَتْ آيَاتُهُ قُرْآنًا عَرَبِيًّا لِّقَوْمٍ يَعْلَمُونَ

A Book whose verses have been detailed, an Arabic Qur'an for a people who know,

بَشِيرًا وَنَذِيرًا فَأَعْرَضَ أَكْثَرُهُمْ فَهُمْ لَا يَسْمَعُونَ

As a giver of good tidings and a warner; but most of them turn away, so they do not hear.