Abu Dawud Book 2, Hadith Number 775.
Chapter : Not known.
Narated By ‘Aisha, Ummul Mu’minin : When the Apostle of Allah (PBUH) 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.”