Shatapatha Brahmana 7.5.1.25

7.5.1.25

viṣṇoḥ karmāṇi paśyateti | vīryaṃ vai karma viṣṇorvīryāṇi paśyatetyetadyato vratāni paspaśa ityannaṃ vai vrataṃ yato 'nnaṃ spāśayāṃ cakra ityetadindrasya yujyaḥ sakhetīndrasya hyeṣa yujyaḥ sakhā dvidevatyayopadadhāti dvehyulūkhalamumale sakṛtsādayati samānaṃ tatkaroti samānaṃ hyetadannameva sādayitvā sūdadohasādhivadati tasyokto bandhuḥ

[He sets them down, with Vâg. S. XIII, 33; Rik S. I, 22, 191 'See ye the deeds of Vishnu'--deed doubtless means power: thus, see ye the powers of Vishnu;--'whereby he beheld the sacred ordinances,'--ordinance means food: thus, whereby he did behold the food;--'Indra's allied friend,' for he is indeed Indra's allied friend. With a (verse) relating to two deities he sets them down, for the mortar and pestle are two. Once he 'settles' them: he thereby makes them one and the same; for one and the same is that food. Having 'settled' it, he pronounces the Sûdadohas on it: the significance of this has been explained.