Srimad Bhagavatam Canto 08, Chapter 11, Text 46

SB 8.11.46

ye ’vasista rane tasmin
 naradanumatena te
balim vipannam adaya
 astam girim upagaman
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Following the order of Narada Muni, whatever demons remained on the battlefield took Bali Maharaja, who was in a precarious condition, to the hill known as Astagiri.
Srimad Bhagavatam Canto 08, Chapter 11, Text 45
Srimad Bhagavatam Canto 08, Chapter 11, Text 47