SB 8.18.19
samiddham ahitam vahnim
krtva parisamuhanam
paristirya samabhyarcya
samidbhir ajuhod dvijah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
After Lord Sri Vamanadeva set a sacrificial fire, He offered worship and performed a fire sacrifice on the sacrificial field.