Al-Hijr - 15:9

إِنَّا نَحْنُ نَزَّلْنَا الذِّكْرَ وَإِنَّا لَهُ لَحَافِظُونَ
[15:9]
Surely We have revealed the Reminder and We will most surely be its guardian.
We have, without doubt, sent down the Message; and We will assuredly guard it (from corruption).
Lo! We, even We, reveal the Reminder, and lo! We verily are its Guardian.