Shatapatha Brahmana 11.6.3.10

11.6.3.10

katame te trayo devā iti ima eva trayo lokā eṣu hīme sarve devā iti katamau tau dvau devāvityannaṃ caiva prāṇaśceti katamo'dhyardha iti yo'yam pavata iti katama eko deva iti prāṇa iti

'Who are those three gods?'--'These three worlds, for therein all the gods are contained.'--'Who are those two gods?'--'Food and breath. (life).'--'Who is the one and a half?'--'He who is blowing here (Vâyu, the wind).'--'Who is the one god?'--'Breath.'