Varahashrautasutra 3.2.2.28

3.2.2.28

arvāñcamadya yathyaṃ nṛvāhaṇam̐ ratham̐ yuñjāthāmiha vām̐ vimocanam pṛṅktam̐ havī m̐ṣi madhunā hi kaṃ gatamathā somaṃ pibatam̐ vājinīvasū - iti gṛhapate yajetyukte gṛhapatiryajati--ye yajāmahe - agniṃ gṛhapatiṃ gārhapatyāt - sugṛhapatistvayāgne'yam̐ sunvanyajamānaḥ syātsugṛhapatistvamanena sunvatā yajamānena - agnirgṛhapatirgārhapatyādṛtunā somaṃ pibatu gārhapatye'nu samṛtunā - ayam̐ hi gaurasi - devāyate yajeti samūḍheṣvavyūḍhe gāyati

When it is said, "O lord of the house, sacrifice!" with "Harness today the chariot that comes hither, carrying men, worthy of sacrifice; here is the unyoking for the two of you; mix the oblations with honey, for you have come; then drink the soma, O possessors of richness!", the lord of the house sacrifices with: "We who sacrifice... Agni, the lord of the house from the gārhapatya... May this sacrificer pressing [soma] be a good lord of the house through thee, O Agni; mayest thou be a good lord of the house through this sacrificer pressing [soma]... May Agni the lord of the house drink soma from the gārhapatya along with the Season, sequentially along with the Season in the gārhapatya... For this is the bull... Sacrifice to him who acts for the gods!" When [the hearths] are arranged together, he sings on the unarranged.