Hammad bin Zayd حماد بن زيد بن درهم الأزدي الأزرق · The Book of the Commencement of the Prayer

When the Prophet (ﷺ) started to pray he would say: "Subhanakallahumma, wa bihamdika tabarakasmuka wa ta'ala jadduka wa la ilaha ghairuk (Glory and praise be to You, O Allah. Blessed be Your name and exalted be Your majesty, there is none worthy of worship except You.)"