Srimad Bhagavatam Canto 03, Chapter 12, Text 01

SB 3.12.1

maitreya uvaca
iti te varnitah ksattah
 kalakhyah paramatmanah
mahima veda-garbho ’tha
 yathasraksin nibodha me
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Sri Maitreya said: O learned Vidura, so far I have explained to you the glories of the form of the Supreme Personality of Godhead in His feature of kala. Now you can hear from me about the creation of Brahma, the reservoir of all Vedic knowledge.
Srimad Bhagavatam Canto 03, Chapter 12, Text 02