Subhana Rabbiyal' Azim wa bi Hamdihi is recited in

Subhana Rabbiyal' Azim wa bi Hamdihi is recited in Ruku' during the prayer (Salah) in Islam. Ruku' is a bowing posture where the hands are placed on the knees, and the recitation of Subhana Rabbiyal' Azim wa bi Hamdihi is one of the supplications that are recommended to be recited during this posture. The phrase means "Glory be to my Lord the Almighty, and praise be to Him," and it is a way to express one's submission, gratitude, and awe towards Allah (SWT) during the prayer. The recitation of this phrase is considered a form of dhikr (remembrance of Allah) and a way to increase one's spiritual connection with Allah.