Shatapatha Brahmana 14.3.1.30

14.3.1.30

sa ānīyamāna āha hotarvadasva yatte vādyamiti vadate hyatra hotāthopottiṣṭhannāha śrātaṃ haviriti śrātaṃ hi bhavatyatikramyāśrāvyāha dadhigharmasya yajeti vaṣaṭkṛte juhotyanuvaṣaṭkṛta āharati bhakṣaṃ taṃ yajamānāya prayacati

On its being brought, he says, 'Hotâr, speak what thou hast to speak!' for the Hotri speaks on this occasion. Then, stepping up, he says, 'Cooked is the offering-food;' for cooked, indeed, it is. Having stepped across (behind the Âhavanîya), and called for the Sraushat, he says, 'Pronounce the offering-formula!' and offers on the Vashat being uttered. When the Vashat is repeated, he brings the draught, and hands it to the Sacrificer.