The incident I am talking about is this:
Finally, Krishna and Nagnajiti departed towards Dwarka, accompanied by their army to protect them. On this way, they were attacked by the princes who had lost in Nagnajit's bull challenge. Krishna's army yielded by his Yadava clan warriors and his friend Arjuna defeated the princes and chased them away.
Also, from Quora:
When Lord Krishna married Nagnajiti, many unsuccessful suitors of royal lineage attacked Krishna. Arjuna defeated all of them single handedly without killing them, on Krishna’s orders.
My question is- In which section of the Puranas is this incident found?