From Sahih Muslim (Hadith 1335):
A'isha reported:When the Messenger of Allah (ﷺ) pronounced salutation, he salutation longer than it took him to say: O Allah: Thou art Peace, and peace comes from Thee, blessed art Thou, Possessor of Glory and ]Honour; and in the narration of Ibn Numair the words are:" O Possessor of Glory and Honour
Reference: Muslim 1335