प्रेषितो ऽध्वर्युणा होता व्यचरत्तत्समाहितः ।
गृहीते हविषि वाचा वषट्कारं गृणन्द्विजः ॥ १५ ॥
presitah-being told to execute the sacrifice; adhvaryuna-by the rtvik priest; hota-the priest in charge of offering oblations; vyacarat-executed; tat-that (sacrifice); samahitah-with great attention; grhite havisi-upon taking the clarified butter for the first oblation; vaca-by chanting the mantra; vasat-karam-the mantra beginning with the word vasat; grnan-reciting; dvijah-the brahmana.
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 "vasat."