SB 10.72.11
na kascin mat-param loke
tejasa yasasa sriya
vibhutibhir vabhibhaved
devo ’pi kim u parthivah
Translation:
No one in this world, even a demigod — what to speak of an earthly king — can defeat My devotee with his strength, beauty, fame or riches.
Purport:
Here Lord Krsna assures King Yudhisthira that he will have no problem conquering the worldly kings, since the King is a pure devotee and the Lord’s pure devotees can never be conquered, even by the demigods, what to speak of earthly kings. Although materialists are proud of their power, fame, beauty and opulence, they can never surpass the pure devotees of the Lord in any of these categories.