75:18
Al-Qiyamah 18
Surah Al-Qiyamah (القيامة), verse 18 — reference 75:18. Arabic text with optional translation and free audio on Al-Qalam.
فَإِذَا قَرَأْنَـٰهُ فَٱتَّبِعْ قُرْءَانَهُۥ
fa-idhā qaranāhu fa-ittabiʿ qur'ānahu
So when We have recited it [through Gabriel], then follow its recitation.