﴿ وَٱذْكُرِ ٱسْمَ رَبِّكَ وَتَبَتَّلْ إِلَيْهِ تَبْتِيلًۭا ﴾

“But [whether by night or by day,] remember thy Sustainer's name, and devote thyself unto Him with utter devotion.”

And mention the Name of your Lord that is say bi’smi’Llāhi’l-rahmāni’l-rahīm ‘In the Name of God the Compassionate the Merciful’ to begin your recitation and devote yourself exclusively to Him with complete devotion tabtīlan is the verbal noun from batala used here instead of tabattulan in order to concord with the end-rhyme of the verses for he the Prophet is obliged to devote himself to God.