Śatapatha Brāhmaṇa ("of a hundred paths") 9.3.3.10

9.3.3.10

athāha | iyaṃ te rāṇmitrāya yantāsi yamana ūrje tvā vṛṣṭyai tvā prajānāṃ tvādhipatyāyetyannaṃ vā ūrgannaṃ vṛṣṭhirannenaivainametatprīṇāti

He then says, 'This is thy realm; a supporter and sustainer art thou for the friend: for sustenance, for rain, for the lordship of creatures (do I consecrate) thee;'--sustenance, doubtless, means food, and rain means food: by food he thus gratifies him.