Subḥāna Rabbiyal-‘Aẓīm.

Dua in Arabic:- سُبْحَانَ رَبِّيَ الْعَظِيمِ
Transliteration:- Subḥāna Rabbiyal-‘Aẓīm.
Translation:- O Allah, forgive me, have mercy on me, guide me, grant me well-being, and provide for me
This is recited at least three times during Ruku.