Śatapatha Brāhmaṇa ("of a hundred paths") 7.5.2.47

7.5.2.47

apāṃ tvodmantsādayāmīti | oṣadhayo vā apāmodma yatra hyāpa undantyastiṣṭhanti tadoṣadhayo jāyanta oṣadhiṣu tāṃ sādayati

'In the swell of the waters I settle thee!' the swell of the waters is the plants, for wherever the waters keep swelling there plants grow: in the plants he settles this (brick).