Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 50
Sanskrit:
ऋषीणां भूरिवीर्याणामपि सर्गमविस्तृतम् ।ज्ञात्वा तद्धृदये भूयश्चिन्तयामास कौरव ॥ ५० ॥
ITRANS:
ṛṣīṇāṁ bhūri-vīryāṇāmapi sargam avistṛtamjñātvā tad dhṛdaye bhūyaścintayām āsa kaurava
Translation:
O son of the Kurus, when Brahmā 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.