Srimad Bhagavatam Canto 06, Chapter 16, Text 17

SB 6.16.17

atha tasmai prapannaya
 bhaktaya prayatatmane
bhagavan naradah prito
 vidyam etam uvaca ha
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Thereafter, being very much pleased with Citraketu, who was a self-controlled devotee and surrendered soul, Narada, the most powerful sage, spoke to him the following transcendental instructions.
Srimad Bhagavatam Canto 06, Chapter 16, Text 16
Srimad Bhagavatam Canto 06, Chapter 16, Text 18-19