Śatapatha Brāhmaṇa ("of a hundred paths") 3.1.4.4

3.1.4.4

tadvā ṛṣīṇāmanuśrutamāsa | te yajñaṃ samabharanyathāyaṃ yajñaḥ sambhṛta evaṃ vā eṣa yajñaṃ sambharati yadetāni juhoti

Now this was heard by the Rishis. They collected the sacrifice, just as this sacrifice is collected (prepared); for even so does he now collect the sacrifice, when he offers those (audgrabhana) libations.