Prayers and Meditations — Paragraph 202
Source (Arabic)
فَارْحَمْ عِبادَكَ وَبَرِيَّتَكَ إِنَّكَ أَنْتَ المُقْتَدِرُ المُتَعالِ العَزِيزُ المُخْتارُ.
Translation
Let Thy mercy, then, be upon Thy servants and Thy creatures. Thou art, in truth, the Almighty, the Inaccessible, the All-Glorious, the Unconditioned.