Śatapatha Brāhmaṇa ("of a hundred paths") 4.2.3.17

4.2.3.17

upayāmagṛhīto 'si | devebhyastvā devāvyamukthebhya ukthāvyamindrāgnibhyāṃ juṣṭaṃ gṛhṇāmyeṣa te yonirindrāgnibhyāṃ tveti sādayati nātra punarhavirasīti sthālīmabhimṛśatīndrāya tvendrāya tvetyeva mādhyandine savana aindraṃ hi mādhyandinaṃ savanaṃ dvirha punarhavirasīti sthālīmabhimṛśati tūṣṇīṃ tṛtīyaṃ nidadhāti

'Thou art taken with a support: thee, the god-pleasing, I take for the gods; (thee) the praise-pleasing, for praises,--agreeable to Indra and Agni!--This is thy womb: thee for Indra and Agni!' thus he deposits it. He does not at this (third portion) touch the sthâlî with 'Thou art a re-offering.' '.... Thee for Indra!' he says each time at the midday feast, for the midday feast is sacred to Indra.
Twice he touches the sthâlî with 'Thou art a re-offering;' and silently he puts it down the third time.