The phrase "Subhana Rabbiyal a'la wabihamdihi" is recited during sujud. Sujud is the position in Islamic prayer (Salah) where a person is in full prostration, touching the ground with the forehead, nose, both palms, both knees, and all toes simultaneously. This act of submission and devotion is accompanied by this specific phrase, which translates to "Glory is to my Lord, the Most High, and praise is to Him." It is a way to express humility and glorify Allah during the prayer. This phrase is not recited during other parts of the prayer such as tashahhud, ruku', or julus.