Srimad Bhagavatam Canto 10, Chapter 61, Text 20

SB 10.61.20

sri-rajovaca
katham rukmy ari-putraya
 pradad duhitaram yudhi
krsnena paribhutas tam
 hantum randhram pratiksate
etad akhyahi me vidvan
 dvisor vaivahikam mithah
 
Translation: 
 
King Pariksit said: How could Rukmi give his daughter to his enemy’s son? After all, Rukmi had been defeated by Lord Krsna in battle and was waiting for an opportunity to kill Him. Please explain this to me, O learned one — how these two inimical parties became united through marriage.
Srimad Bhagavatam Canto 10, Chapter 61, Text 19
Srimad Bhagavatam Canto 10, Chapter 61, Text 21