Shatapatha Brahmana 3.8.1.11

3.8.1.11

atha stīrṇāyai vedeḥ | dve tṛṇe adhvaryurādatte sa āśrāvyāhopapreṣya hotarhavyā devebhya ityetadu vaiśvadevam paśau

Thereupon the Adhvaryu takes two stalks of grass from the covered altar, and having called for the Sraushat, he says (to the Maitrâvaruna), 'O Hotri, prompt again (the Hotri to recite for) the offerings to the gods!' This is what belongs to the All-gods at the animal offering.