Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 1-2
Sanskrit:
श्रीराजोवाचयया गुप्त: सहस्राक्ष: सवाहान् रिपुसैनिकान् ।क्रीडन्निव विनिर्जित्य त्रिलोक्या बुभुजे श्रियम् ॥ १ ॥भगवंस्तन्ममाख्याहि वर्म नारायणात्मकम् ।यथाततायिन: शत्रून्येन गुप्तोऽजयन्मृधे ॥ २ ॥
ITRANS:
śrī-rājovācayayā guptaḥ sahasrākṣaḥsavāhān ripu-sainikānkrīḍann iva vinirjityatri-lokyā bubhuje śriyam
Translation:
King Parīkṣit inquired from Śukadeva Gosvāmī: My lord, kindly explain the Viṣṇu mantra armor that protected King Indra and enabled him to conquer his enemies, along with their carriers, and enjoy the opulence of the three worlds. Please explain to me that Nārāyaṇa armor, by which King Indra achieved success in battle, conquering the enemies who were endeavoring to kill him.