Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 15
Sanskrit:
प्रेषितोऽध्वर्युणा होता व्यचरत् तत् समाहित: ।गृहीते हविषि वाचा वषट्कारं गृणन्द्विज: ॥ १५ ॥
ITRANS:
preṣito ’dhvaryuṇā hotāvyacarat tat samāhitaḥgṛhīte haviṣi vācāvaṣaṭ-kāraṁ gṛṇan dvijaḥ
Translation:
Told by the chief priest “Now offer oblations,” the person in charge of oblations took clarified butter to offer. He then remembered the request of Manu’s wife and performed the sacrifice while chanting the word “vaṣaṭ.”