Śatapatha Brāhmaṇa ("of a hundred paths") 4.4.1.15

4.4.1.15

sa yatraitāṃ hotā śaṃsati | ekayā ca daśabhiśca svabhūte dvābhyāmiṣṭaye viṃśatī ca tisṛbhiśca vahase triṃśatā ca niyudbhirvāyaviha tā vimuñceti tadetasyāṃ vāyavyāyāmṛci pātrāṇi vimucyante vāyupraṇetrā vai paśavaḥ prāṇo vai vāyuḥ prāṇena hi paśavaścaranti

And when he (the Hotri) recites this (verse), 'With one and ten for thine own sake, with two and twenty for offering, with three and thirty for up-bearing (the sacrifice to the gods); with thy teams, O Vâyu, do thou here unloose them!'--during (the recitation of) this verse to Vâyu the drinking-vessels are unyoked, for beasts have Vâyu for their leader; and Vâyu (wind) is breath, since it is by means of the breath that beasts move about.