Srimad Bhagavatam Canto 12, Chapter 10, Text 37

SB 12.10.37

jñanam trai-kalikam brahman
 vijñanam ca viraktimat
brahma-varcasvino bhuyat
 puranacaryatastu te
 
Translation: 
 
O brahmana, may you have perfect knowledge of past, present and future, along with transcendental realization of the Supreme, enriched by renunciation. You have the brilliance of an ideal brahmana, and thus may you achieve the post of spiritual master of the Puranas.
Srimad Bhagavatam Canto 12, Chapter 10, Text 36
Srimad Bhagavatam Canto 12, Chapter 10, Text 38