73:8
وَاذْكُرِ اسْمَ رَبِّكَ وَتَبَتَّلْ اِلَیْهِ تَبْتٖیلًاؕ
Waothkuri isma rabbika watabattal ilayhi tabteelan
Translations
And remember the name of your Lord and devote yourself to Him with [complete] devotion
Saheeh International
So remember the name of thy Lord and devote thyself with a complete devotion
Marmaduke Pickthall