Śatapatha Brāhmaṇa ("of a hundred paths") 3.4.3.16

3.4.3.16

tadvā ṛṣīṇāmanuśrutamāsa | te yajñaṃ samabharanyathāyaṃ yajñaḥ sambhṛta evaṃ vā eṣa yajñaṃ sambharati yo dīkṣate vāgvai yajñastadyadevātra yajñasya nirdhītaṃ yadvidugdhaṃ tadevaitatpunarāpyāyayati

Now this was heard by the Rishis. They collected the sacrifice; and as that sacrifice was collected, so does he collect the sacrifice who is consecrated. The sacrifice is speech: hence he thereby again supplies what part of the sacrifice here has been sucked out and drained.