15:9
إِنَّا نَحْنُ نَزَّلْنَا ٱلذِّكْرَ وَإِنَّا لَهُۥ لَحَـٰفِظُونَ
innā naḥnu nazzalnā l-dhik'ra wa-innā lahu laḥāfiẓūna
We have sent down the Quran Ourself, and We Ourself will guard it. Even before you [Prophet],
Verily, We, it is We Who have sent down the Dhikr (i.e. the Qur’ân) and surely, We will guard it (from corruption).