Śatapatha Brāhmaṇa ("of a hundred paths") 5.2.1.15

5.2.1.15

atha diśo 'nuvīkṣamāṇo japati | asme vo astvindriyamasme nṛmṇamuta kraturasme varcāṃsi santu va iti sarvaṃ vā eṣa idamujjayati yo vājapeyena yajate prajāpatiṃ hyujjayati sarvamu hyevedam prajāpatiḥ so 'sya sarvasya yaśa indriyaṃ vīryaṃ saṃvṛjya tadātmandhatte tadātmankurute tasmāddiśo 'nuvīkṣamāṇo japati

Thereupon, while looking in the different directions, he mutters (Vâg. S. IX, 22), 'Ours be your power, ours your manhood and intelligence ours be your energies!' For he who offers the Vâgapeya wins everything here, winning as he does Pragâpati, and Pragâpati being everything here;--having appropriated to himself the glory, the power, and the strength of this All, he now lays them within himself, makes them his own: that is why he mutters, while looking in the different directions.