SB 3.18.21
asanna-saundiram apeta-sadhvasam
krta-pratikaram aharya-vikramam
vilaksya daityam bhagavan sahasra-nir
jagada narayanam adi-sukaram
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
After arriving at the place of combat, Brahma, the leader of thousands of sages and transcendentalists, saw the demon, who had attained such unprecedented power that no one could fight with him. Brahma then addressed Narayana, who was assuming the form of a boar for the first time.