Śatapatha Brāhmaṇa ("of a hundred paths") 7.1.2.10

7.1.2.10

tāmagnau pravṛṇakti | yathaivainamado devāḥ prāvṛñjaṃstadya enām pravṛktāmagnirārohati ya evāsmātsa prāṇo madhyata udakrāmatsa evainaṃ sa āpadyate tamasmindadhātyatha yadrukbham pratimucya bibharti yadevāsmādvīryamudakrāmattadasmindadhātyatha yāḥ samidha ādadhāti yadevāsmādannamasravattadasmindadhāti

He heats it on the fire, even as the gods then heated him (Pragâpati). And when the fire rises over it thus heated, then that same vital air which went out from within him comes back to him, and he puts it into him. And when, putting on the gold plate, he wears it, he puts into him that very vigour which had gone out of him. And when he puts on kindling-sticks, he puts into him that very food which had flowed from him.