SB 10.72.10
ete te bhrataro rajaḻ
loka-palamsa-sambhavah
jito ’smy atmavata te ’ham
durjayo yo ’krtatmabhih
Translation:
These brothers of yours, O King, have taken birth as partial expansions of the demigods ruling various planets. And you are so self-controlled that you have conquered even Me, who am unconquerable for those who cannot control their senses.
Purport:
Srila Prabhupada writes in Krsna, “It is said that Bhima was born of the demigod Vayu and that Arjuna was born of the demigod Indra, whereas King Yudhisthira himself was born of the demigod Yamaraja.” Srila Prabhupada goes on to state, “Lord Krsna told King Yudhisthira that He becomes conquered by the love of one who has conquered his senses. One who has not conquered his senses cannot conquer the Supreme Personality of Godhead. This is the secret of devotional service. To conquer the senses means to engage them constantly in the service of the Lord. The specific qualification of all the Pandava brothers was that they always engaged their senses in the service of the Lord. One who thus engages his senses becomes purified, and with purified senses one can actually render service to the Lord. The Lord can thus be conquered by the devotee through loving transcendental service.”