Śatapatha Brāhmaṇa ("of a hundred paths") 4.4.1.17

4.4.1.17

sa hopāvartsyannuvāca | yadva upāvarteya kim me tataḥ syāditi tvayaivaitāni pātrāṇi yujyeraṃstvayā vimucyeranniti tadenenaitatpātrāṇi yujyante yadaindravāyavāgrānprātaḥsavane gṛhṇātyathainenaitatpātrāṇi vimucyante yadāha niyudbhirvāyaviha tā vimuñceti paśavo vai niyutastatpaśubhirevaitatpātrāṇi

Being about to return, he said, 'If I were to return to you, what would be my reward? '--'By thee these vessels would be yoked, and by thee they would be unloosed!'--Hence those vessels are yoked by that (Vâyu), when he (the Adhvaryu) draws the (cups) for Indra and Vâyu and so forth. And now those vessels are unloosed by him, when he says, 'with thy teams, O Vâyu, do thou here unloose them;'--teams mean cattle: thus he unlooses those vessels by means of cattle.