Śatapatha Brāhmaṇa ("of a hundred paths") 13.5.2.11

13.5.2.11

śṛtāsu vapāsu svāhākṛtibhiścaritvā pratyañcaḥ pratiparetya sadasi brahmodyam vadanti pūrvayā dvārā prapadya yathādhiṣṇyam vyupaviśanti

When the omenta have been roasted, and when they have performed (the oblations) with the Svâhâs, and returned to the back (of the sacrificial ground), they hold a Brahmodya (theological discussion) in the Sadas. Having entered by the front door, they sit down at their several hearths.