Shatapatha Brahmana 3.4.4.10

3.4.4.10

athāśrāvya na hotāram pravṛṇīte | sīda hotarityevāhopaviśati hotā hotṛṣadana upaviśya prasauti prasūto 'dhvaryuḥ srucāvādatte

When he has called on the Âgnîdhra) for the Sraushat,-- he does not elect the Hotri. 'Seat thee, O Hotri!' he says. The Hotri sits down on the Hotri's seat. Having sat down he urges the Adhvaryu; and he, thus urged, takes the two offering-spoons.