Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 37
Sanskrit:
अहं बन्ध्यासपत्नी च स्नुषा मे युज्यते कथम् ।जनयिष्यसि यं राज्ञि तस्येयमुपयुज्यते ॥ ३७ ॥
ITRANS:
ahaṁ bandhyāsapatnī casnuṣā me yujyate kathamjanayiṣyasi yaṁ rājñitasyeyam upayujyate
Translation:
Śaibyā said, “I am sterile and have no co-wife. How can this girl be my daughter-in-law? Please tell me.” Jyāmagha replied, “My dear Queen, I shall see that you indeed have a son and that this girl will be your daughter-in-law.”