Srimad Bhagavatam Canto 06, Chapter 10, Text 30

SB 6.10.30

vrtro ’surams tan anugan manasvi
 pradhavatah preksya babhasa etat
palayitam preksya balam ca bhagnam
 bhayena tivrena vihasya virah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Seeing his army broken and all the asuras, even those known as great heroes, fleeing the battlefield out of intense fear, Vrtrasura, who was truly a great-minded hero, smiled and spoke the following words.
Srimad Bhagavatam Canto 06, Chapter 10, Text 29
Srimad Bhagavatam Canto 06, Chapter 10, Text 31