Shatapatha Brahmana 10.6.1.8

10.6.1.8

atha hovācendradyumnam bhāllaveyam vaiyāghrapadya kaṃ tvaṃ vaiśvānaraṃ vetthetyādityameva rājanniti hovācomiti hovācaiṣa vai sutatejā vaiśvānara etaṃ hi vai tvaṃ sutatejasaṃ vaiśvānaraṃ vettha tasmāttavaiṣa suto'dyamānaḥ pacyamāno'kṣīyamāṇo gṛheṣu tiṣṭhati yo vā etaṃ sutatejasaṃ vaiśvānaraṃ vedāpa punarmṛtyuṃ jayati sarvamāyureti cakṣustvā etadvaiśvānarasya cakṣustvāhāsyadyadi ha nāgamiṣya iti cakṣuste'viditamabhaviṣyadyadi ha nāgamiṣya iti vā

He then said to Indradyumna Bhâllaveya, 'O Vaiyâghrapadya, as whom knowest thou Vaisvânara?'--'As Sun only, O king,' he replied.--'Yea,' he said, 'that indeed is the Vaisvânara of Soma's splendour; and because thou knowest the Vaisvânara of Soma's splendour, therefore that Soma-juice never fails to be consumed and cooked in thy house; and, verily, he who knows that Vaisvânara of Soma's splendour, repels death, and attains all life. But, indeed, this is only the eye of Vaisvânara, and thine eye would have failed thee, hadst thou not come hither; or the eye would be unknown to thee, hadst thou not come hither.'