Śatapatha Brāhmaṇa ("of a hundred paths") 10.6.1.7

10.6.1.7

atha hovāca buḍilamāśvatarāśvim vaiyāghrapadya kaṃ tvaṃ vaiśvānaraṃ vettheti vāyumeva rājanniti hovācomiti hovācaiṣa vai pṛthagvartmā vaiśvānara etaṃ hi vai tvam pṛthagvartmānaṃ vaiśvānaraṃ vettha tasmāttvām pṛthagrathaśreṇayo'nuyānti yo vā etam pṛthagvartmānaṃ vaiśvānaraṃ vedāpa punarmṛtyuṃ jayati sarvamāyureti prāṇastvā eṣa vaiśvānarasya prāṇastvāhāsyadyadi ha nāgamiṣya iti prāṇaste'vidito'bhaviṣyadyadi ha nāgamiṣya iti vā

He then said to Budila Âsvatarâsvi, 'O Vaiyâghrapadya, as whom knowest thou Vaisvânara?'--'As Air (wind) only, O king;' he replied.--'Yea,' he said, 'that indeed is the Vaisvânara of divers courses; and because thou knowest that Vaisvânara of divers courses, therefore divers rows of cars follow thee; and, verily, he who knows that Vaisvânara of divers courses, repels death, and attains all life. But, in truth, this is only the breath of Vaisvânara, and thy breath would have failed thee, hadst thou not come hither; or the breath would be unknown to thee, hadst thou not come hither.'