The Holy Quran 56:79 — Surah Al-Waqi'ah

Arabic text

لَّا يَمَسُّهُۥٓ إِلَّا ٱلْمُطَهَّرُونَ

Translation

Only the pure ones (the angels, who are pure from sin) may touch it (the "Lowhul Mahfoodh"). (The Shayaateen and all evil forces have absolutely no access to it.)

Tafsir (excerpt) — Tafsir Usmani

The etiquette of touching the Quran: Shah [Abd al-Qadir] ﵀ writes: “That is, the angels touch this book with their hands. That book is this very Quran, written in the hands of the angels or in the Preserved Tablet.” And some [commentators] have referred the pronoun in لَا يَمَسُّهٗٓ (“none touch it”)

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