BṚHADĀRAṆYAKA UPANISHAD · 6.3.5

अथैनम् उद्यच्छत्य् आमंस्य् आमं हि ते महि ।
स हि राजेशानो ऽधिपतिः ।
स मां राजेशनो ऽधिपतिं करोत्व् इति ॥

athainam udyacchaty āmaṃsy āmaṃ hi te mahi ।
sa hi rājeśāno ’dhipatiḥ ।
sa māṃ rājeśano ’dhipatiṃ karotv iti ॥

Then he holds it (the Mantha) forth, saying 'Thou knowest all, we know thy greatness. He is indeed a king, a ruler, the highest lord. May that king, that ruler make me the highest lord.'

F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)