Surah Al-Qadr 97:5

سَلَـٰمٌ هِىَ حَتَّىٰ مَطْلَعِ ٱلْفَجْرِ

Peace it is until the emergence of dawn.

Translation: Saheeh International

Tafsir

It is peaceful salāmun hiya a predicate preceding the subject until the rising of the dawn read matla‘ or matli‘ until the time it rises it is peaceful because of the numerous salutations of peace salām spoken in it by the angels who every time they come across a believing man or believing woman bid him peace.

Excerpt from Tafsir al-Jalalayn, commentary on 97:5, via Quran.com. The reader has the full commentary and 9 more tafsirs.