SB 6.9.4
tad deva-helanam tasya
dharmalikam suresvarah
alaksya tarasa bhitas
tac-chirsany acchinad rusa
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Once upon a time, however, the King of heaven, Indra, understood that Visvarupa was secretly cheating the demigods by offering oblations on behalf of the demons. He became extremely afraid of being defeated by the demons, and in great anger at Visvarupa he cut Visvarupa’s three heads from his shoulders.