Surah Al-Mutaffifin 83:9

كِتَـٰبٌ مَّرْقُومٌ

It is [their destination recorded in] a register inscribed.

Translation: Saheeh International

Tafsir

It is a sealed book.

Excerpt from Tafsir al-Jalalayn, commentary on 83:9, via Quran.com. The reader has the full commentary and 9 more tafsirs.