Al-Haafiz is the one who preserves and protects all that He has created. He preserves the heavens and the earth and all that is between them. He preserves His servant from destruction and calamity, and He preserves the deeds of His servants — nothing is lost with Him. He sent down the Quran and took upon Himself to preserve it, and so it has remained unchanged for over fourteen centuries, letter by letter, exactly as it was revealed.
“Indeed, it is We who sent down the Reminder, and indeed, We will be its Guardian.”
[al-Hijr (15): 9]
“For him [each person] there are angels in succession, before and behind him. They guard him by the Command of Allah.”
[ar-Ra'd (13): 11]
From “Explanation to the Beautiful and Perfect Names of Allah” — Shaykh as-Sa’di (d.1376H)