Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 55
Sanskrit:
बाढमित्यभ्युपेत्याथ दिती राजन्महामना: ।कश्यपाद् गर्भमाधत्त व्रतं चाञ्जो दधार सा ॥ ५५ ॥
ITRANS:
bāḍham ity abhyupetyāthaditī rājan mahā-manāḥkaśyapād garbham ādhattavrataṁ cāñjo dadhāra sā
Translation:
O King Parīkṣit, Diti, the wife of Kaśyapa, agreed to undergo the purificatory process known as puṁsavana. “Yes,” she said, “I shall do everything according to your instructions.” With great jubilation she became pregnant, having taken semen from Kaśyapa, and faithfully began discharging the vow.