Shatapatha Brahmana 9.5.1.68

9.5.1.68

kāmamvevainaṃ sa cinvīta | yaḥ saṃvatsaraṃ jātaḥ syātprāṇo vā agnistametadbibhartyatha ha vai retaḥ siktam prāṇo 'nvavarohati tadvindate tadyajjātaṃ-jātaṃ vindate tasmājjātavedāstasmādapyevaṃvitkāmaṃ sadyobhṛtaṃ cinvīta yadu ha vā evaṃvitpibati vā pāyayati vā tadevāsya yathā sarvasmiñcāṇḍile 'gnau saṃcite pakṣapucavatyāhutayo hutāḥ syurevamasyaitā āhutayo hutā bhavanti

And, indeed, let him by all means build who was born a year (after conception); for Agni is the breath; it is thus him (Agni) he holds. And, indeed, as the breath, he enters into the infused seed, and takes possession of it; and inasmuch as he takes possession (vid) of every one that is born (gâta), he is Gâtavedas. Wherefore by all means let even one who knows this build him as one ever carried (within him). And, indeed, if one who knows this either drinks (Soma), or offers drink to any one else, these libations of his will be offered even as would be his libations, when offered on a complete Sândila fire-altar built up with wings and tail.