Al-Hijr 15:9
إِنَّا نَحْنُ نَزَّلْنَا ٱلذِّكْرَ وَإِنَّا لَهُۥ لَحَـٰفِظُونَ
Inna nahnu nazzalna aththikrawa-inna lahu lahafithoon
"Indeed, it is We who sent down the message [i.e., the Qur’ān], and indeed, We will be its guardian."
Al-Hijr 15:9, translation by Sahih International
A short reflection
Indeed, it is We who sent down the Reminder, and indeed, We will be its guardian.