Agniveshyagrihyasutra 2.5.10.8

2.5.10.8

triṣphalīkṛtya triḥ prakṣālya tiraḥpavitraṃ sthālyām apa ānīyādhiśritya paryagni kṛtvābhighārya carumudvāsyābhighārayati \

Having husked it thrice and washed it thrice, having poured water into the pot through the strainer, set it on the fire, carried fire around it, poured clarified butter over it, and taken the cooked oblation down from the fire, he pours clarified butter over it.