Sunan Ibn Majah 806

It was narrated from ‘Aishah that when the Prophet (ﷺ) started Salat he would say:“Subhanak Allahumma wa bi hamdika, wa tabarakas- muka wa ta’ala jadduka, wa la ilaha ghayruk (Glory and praise is to You, O Allah, blessed is Your Name and exalted is Your majesty, none has the right to be worshipped but You).”