Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 23

Sanskrit:

यद्यप्यनुस्मरन् वैरं रुक्‍मी कृष्णावमानित: ।व्यतरद् भागिनेयाय सुतां कुर्वन् स्वसु: प्रियम् ॥ २३ ॥

ITRANS:

yady apy anusmaran vairaṁrukmī kṛṣṇāvamānitaḥvyatarad bhāgineyāyasutāṁ kurvan svasuḥ priyam

Translation:

Though Rukmī always remembered his enmity toward Lord Kṛṣṇa, who had insulted him, in order to please his sister he sanctioned his daughter’s marriage to his nephew.

Purport:

The answer to King Parīkṣit’s question is given here. Ultimately Rukmī approved his daughter’s marriage to Pradyumna in order to please his sister, Rukmiṇī.