Surah Al-Haqqah — Ayah 13 (69:13)
فَإِذَا نُفِخَ فِي ٱلصُّورِ نَفۡخَةٞ وَٰحِدَةٞ ١٣
English translation (Saheeh International)
Then when the Horn is blown with one blast
Brief commentary
So when the appointed angel will blow into the trumpet once, being the second blowing.