Śatapatha Brāhmaṇa ("of a hundred paths") 10.6.1.11

10.6.1.11

sa hovāca mūrdhānamupadiśanneṣa vā atiṣṭhā vaiśvānara iti cakṣuṣī upadiśannuvācaiṣa vai sutatejā vaiśvānara iti nāsike upadiśannuvācaiṣa vai pṛthagvartmā vaiśvānara iti mukhyamākāśamupadiśannuvācaiṣa vai bahulo vaiśvānara iti mukhyā apa upadiśannuvācaiṣa vai rayirvaiśvānaro iti cubukamupadiśannuvācaiṣa vai pratiṣṭhā vaiśvānara iti sa eṣo'gnirvaiśvānaro yatpuruṣaḥ sa yo haitamevamagniṃ vaiśvānaram puruṣavidham puruṣe'ntaḥ pratiṣṭhitaṃ vedāpa punarmṛtyuṃ jayati sarvamāyureti na hāsya bruvāṇaṃ cana vaiśvānaro hinasti

Pointing at the head he said, 'This, indeed, is the Vaisvânara Pre-eminence;'--pointing at the eyes he said, 'This, indeed, is the Vaisvânara of Soma's splendour;'--pointing at the nostrils he said, 'This, indeed, is the Vaisvânara of divers courses;'--pointing at the space in the mouth he said, 'This, indeed, is the Vaisvânara Plenteous;'--pointing at the water in the mouth he said, 'This, indeed, is the Vaisvânara Wealth;'--pointing at the chin he said, 'This, indeed, is the Vaisvânara Foundation.' This Agni Vaisvânara is no other than the Purusha; and, verily, whosoever thus knows that Agni Vaisvânara as Purusha-like, as established within the Purusha, repels death, and attains all life; and, verily, Vaisvânara does no harm to him that speaks of him.