Surah Al-Muzzammil · 73:8
وَاذْكُرِ اسْمَ رَبِّكَ وَتَبَتَّلْ إِلَيْهِ تَبْتِيلًا
But [whether by night or by day,] remember thy Sustainer's name, and devote thyself unto Him with utter devotion.
Read Surah Al-Muzzammil 73:8: "But [whether by night or by day,] remember thy Sustainer's name, and devote thyself unto Him with utter devotion...." Full Arabic text, English translation, and image generator.