Qur'ān 12:2 · Yusuf (يوسف)

إِنَّآ أَنزَلْنَـٰهُ قُرْءَٰنًا عَرَبِيًّۭا لَّعَلَّكُمْ تَعْقِلُونَ

Indeed, We have sent it down as an Arabic Qur'an that you might understand.