Surah Al-Insan 76:7

يُوفُونَ بِٱلنَّذْرِ وَيَخَافُونَ يَوْمًا كَانَ شَرُّهُۥ مُسْتَطِيرًا

They [are those who] fulfill [their] vows and fear a Day whose evil will be widespread.

Translation: Saheeh International

Tafsir

They fulfil their vows pledged in obedience to God and fear a day the evil of which will be widespread.

Excerpt from Tafsir al-Jalalayn, commentary on 76:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.