Trường Bộ Kinh (Digha Nikaya) 1:145
SUJATOna cāhu na ca bhavissati na cetarahi vijjati añño samaṇo vā brāhmaṇo vā bhagavatā bhiyyobhiññataro yadidaṁ sambodhiyan”ti.
I believe there’s no other ascetic or brahmin—whether past, future, or present—whose direct knowledge is superior to the Buddha when it comes to awakening.”