SB 6.11.6
evam sura-ganan kruddho
bhisayan vapusa ripun
vyanadat sumaha-prano
yena loka vicetasah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Sukadeva Gosvami said: Vrtrasura, the angry and most powerful hero, terrified the demigods with his stout and strongly built body. When he roared with a resounding voice, nearly all living entities fainted.