The phrase "Subhana Rabbiyal azim wabihamdih" is recited during **Ruku** in Islamic prayers. **Ruku** refers to the bowing position in the prayer, where a person bends forward at the waist while keeping their back and head level, and hands on the knees. During this position, it is customary to recite words of glorification and praise to Allah, and "Subhana Rabbiyal azim wabihamdih" translates to "Glory is to my Lord, the Most Great, and praising Him," which fits perfectly with the spirit of humility and reverence displayed in **Ruku**.