samidbhir ajuhod dvijaḥ

samiddham-blazing; ahitam-being situated; vahnim-the fire; krtva-after making; parisamuhanam-properly; paristirya-surpassing; samabhyarcya-after offering worship; samidbhih-with sacrificial offerings; ajuhot-completed the fire sacrifice; dvijah-the best of the brahmanas.