73:8
Al-Muzzammil 8
Surah Al-Muzzammil (المزمل), verse 8 — reference 73:8. Arabic text with optional translation and free audio on Al-Qalam.
وَٱذْكُرِ ٱسْمَ رَبِّكَ وَتَبَتَّلْ إِلَيْهِ تَبْتِيلًا
wa-udh'kuri is'ma rabbika watabattal ilayhi tabtīlan
And remember the name of your Lord and devote yourself to Him with [complete] devotion.