Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 4
Sanskrit:
तद्देवहेलनं तस्य धर्मालीकं सुरेश्वर: ।आलक्ष्य तरसा भीतस्तच्छीर्षाण्यच्छिनद् रुषा ॥ ४ ॥
ITRANS:
tad deva-helanaṁ tasyadharmālīkaṁ sureśvaraḥālakṣya tarasā bhītastac-chīrṣāṇy acchinad ruṣā
Translation:
Once upon a time, however, the King of heaven, Indra, understood that Viśvarūpa 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 Viśvarūpa he cut Viśvarūpa’s three heads from his shoulders.