سورة Yusuf 12:2

إِنَّآ أَنزَلْنَـٰهُ قُرْءَٰنًا عَرَبِيًّۭا لَّعَلَّكُمْ تَعْقِلُونَ ٢

Indeed, We have sent it down as an Arabic Quran so that you may understand