Surah Az-Zukhruf, verse 1

وَٱلْكِتَـٰبِ ٱلْمُبِينِ ﴿٢﴾

By the clear Book,

إِنَّا جَعَلْنَـٰهُ قُرْءَٰنًا عَرَبِيًّۭا لَّعَلَّكُمْ تَعْقِلُونَ ﴿٣﴾

Indeed, We have made it an Arabic Qur’ān that you might understand.