وَاذْكُرِ اسْمَ رَبِّكَ وَتَبَتَّلْ إِلَيْهِ تَبْتِيلًا • رَّبُّ الْمَشْرِقِ وَالْمَغْرِبِ لَا إِلَٰهَ إِلَّا هُوَ فَاتَّخِذْهُ وَكِيلًا
Wa-ḏkur isma rabbika wa-tabattal ilayhi tabtīlā • Rabbu l-mašriqi wa-l-maġribi lā ilāha illā huwa fa-ttaḫiḏhu wakīlā
“And remember the name of your Lord and devote yourself to Him with [complete] devotion. [He is] the Lord of the East and the West; there is no deity except Him, so take Him as Disposer of affairs.”
Context:
A command to devoted dhikr and to take Allah as one's sole Trustee.