Prayers and Meditations — Paragraph 544
Source (Arabic)
عَلَى ما تَشآءُ وَإِنَّكَ أَنْتَ المَحْبُوبُ فِي الآخِرَةِ وَالأُولى لا إِلهَ إِلاَّ أَنْتَ العَلِيُّ الأَبْهی.
Translation
Potent art Thou to do Thy pleasure. Thou art the one alone Beloved in both this world and in the next. No God is there but Thee, the Most Exalted, the All-Glorious.