Śatapatha Brāhmaṇa ("of a hundred paths") 9.4.2.9

9.4.2.9

yadveva vātahomānjuhoti | etamevaitadrathaṃ yunaktyedadvai devā etaṃ rathaṃ sarvebhyaḥ kāmebhyo 'yuñjata yuktena samaśnavāmahā iti tena yuktena sarvānkāmāntsamāśnuvata tathaivaitadyajamāna etaṃ rathaṃ sarvebhyaḥ kāmebhyo yuṅkte yuktena samaśnavā iti tena yuktena sarvānkāmāntsamaśnute

And as to why he offers the oblations of air: he thereby yokes that chariot of his; for it was thereby that the gods yoked that chariot for (the obtainment of) all their wishes, thinking, 'By it, when yoked, we shall obtain them;' and by that yoked (chariot) they indeed obtained their wishes; and in like manner does the Sacrificer thereby yoke that chariot of his for (the obtainment of) all his wishes, thinking, 'By it, when yoked, I shall obtain them;' and by that yoked (chariot) he indeed obtains all his wishes.