73:8

Al-Muzzammil 73:8

وَٱذْكُرِ ٱسْمَ رَبِّكَ وَتَبَتَّلْ إِلَيْهِ تَبْتِيلًۭا

Wazkuris ma rabbika wa tabattal ilaihi tabteelaa

But keep in remembrance the name of thy Lord and devote thyself to Him whole-heartedly.