Srimad Bhagavatam Canto 06, Chapter 08, Text 03

SB 6.8.3

sri-badarayanir uvaca
vrtah purohitas tvastro
 mahendrayanuprcchate
narayanakhyam varmaha
 tad ihaika-manah srnu
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Sri Sukadeva Gosvami said: King Indra, the leader of the demigods, inquired about the armor known as Narayana-kavaca from Visvarupa, who was engaged by the demigods as their priest. Please hear Visvarupa’s reply with great attention.
Srimad Bhagavatam Canto 06, Chapter 08, Text 01-02
Srimad Bhagavatam Canto 06, Chapter 08, Text 04-06