Srimad Bhagavatam Canto-06, Chapter-16, Text-17
atha tasmai prapannaya
bhaktaya prayatatmane
bhagavan naradah prito
vidyam etam uvaca ha
Translation:
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.