When the Messenger of Allah ﷺ began his prayer, he said: "Glory be to Thee, O Allah," and "Praise be to Thee" and "Blessed is Thy name, and Exalted is Thy greatness, sand there is no god but Allah." Abu Dawud said: This tradition is not well known from 'Abd al-Salam b. Harb. No one narrated this except Talq b. Ghannam. A group of narrators reported the description of prayer from (the narrator) Budail; they did not mention therein this supplication.
كَانَ رَسُولُ اللَّهِ ﷺ إِذَا اسْتَفْتَحَ الصَّلاَةَ قَالَ سُبْحَانَكَ اللَّهُمَّ وَبِحَمْدِكَ وَتَبَارَكَ اسْمُكَ وَتَعَالَى جَدُّكَ وَلاَ إِلَهَ غَيْرُكَ