Śatapatha Brāhmaṇa ("of a hundred paths") 3.9.2.5

3.9.2.5

gopīthāya vā etā gṛhyante | sarvaṃ vā idamanyadilayati yadidaṃ kiṃ cāpi yo 'yam pavate 'thaitā eva nelayanti tasmātsyandamānānāṃ gṛhṇīyāt

Moreover, it is taken for the purpose of protection. Now, everything else here on earth, whatever it be, takes rest, even yonder blowing (wind); but these (waters) alone take no rest: therefore let him take it from flowing (water).