Surah As-Saffat, Ayah 19
Quran 37:19 · Those who set the Ranks · Makki · Para 23 · Page 446
فَاِنَّمَا هِیَ زَجْرَةٌ وَّاحِدَةٌ فَاِذَا هُمْ یَنْظُرُوْنَ ۟
Transliteration
Fa-innama hiya zajratun wahidatunfa-itha hum yanthuroon
Saheeh International
It will be only one shout, and at once they will be observing.
Al-Mukhtasar fi Tafsir
It will only be one blow of the trumpet (the second blowing), and suddenly they will all be looking at the horrors of the Day of Judgement, awaiting what Allah will do with them.
Tafsir Ibn Kathir (abridged)
Explains 37:11–37:19 together — read it on 37:11