Srimad Bhagavatam Canto 03, Chapter 12, Text 50

SB 3.12.50

rsinam bhuri-viryanam
 api sargam avistrtam
jñatva tad dhrdaye bhuyas
 cintayam asa kaurava
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
O son of the Kurus, when Brahma saw that in spite of the presence of sages of great potency there was no sufficient increase in population, he seriously began to consider how the population could be increased.
Srimad Bhagavatam Canto 03, Chapter 12, Text 49
Srimad Bhagavatam Canto 03, Chapter 12, Text 51