Devibhagavatapurana 7.9.42

7.9.42

niḥsāritastataḥ putraḥ kukṣiṃ bhittvā pituḥ punaḥ |
rājovāca - na śrutaṃ na ca dṛṣṭaṃ vā bhavatā tadudāhṛtam ||

Janamejaya said:-- O fortunate One! What you said was never seen nor heard ever before since. This sort of birth is highly improbable. How was that beautiful son born in the belly of his father? Describe this in detail and satisfy my curiosity.