Srimad Bhagavatam Canto 12, Chapter 10, Text 40

SB 12.10.40

anuvarnitam etat te
 markandeyasya dhimatah
anubhutam bhagavato
 maya-vaibhavam adbhutam
 
Translation: 
 
I have thus narrated to you the activities of the highly intelligent sage Markandeya, especially how he experienced the amazing power of the Supreme Lord’s illusory energy.
Srimad Bhagavatam Canto 12, Chapter 10, Text 39
Srimad Bhagavatam Canto 12, Chapter 10, Text 41