Bhagavatapurana 10.61.20

10.61.20

/0 śrī-rājovāca
kathaṃ rukmy arī-putrāya prādād duhitaraṃ yudhi /
kṛṣṇena paribhūtas taṃ hantuṃ randhraṃ pratīkṣate /
etad ākhyāhi me vidvan dviṣor vaivāhikaṃ mithaḥ //

20. The king said:—How did Rukmin defeated by Krishna in battle and ever looking for an occasion to kill Him, give his daughter to the son of his enemy? Please tell me of this, O sage, how marital relations came about between enemies.