Mahabharata 2.61.9

2.61.9

āhūto hi parai rājā kṣātradharmamanusmaran |
dīvyate parakāmena tannaḥ kīrtikaraṃ mahat || 9 ||

'Arjuna hearing this, said,--'Thou hast never, O Bhimasena, before this uttered such words as these. Assuredly thy high morality hath been destroyed by these cruel foes. Thou shouldst not fulfil the wishes of the enemy. Practise thou the highest morality. Whom doth it behave to transgress his virtuous eldest brother? The king was summoned by the foe, and remembering the usage of the Kshatriyas, he played at dice against his will. That is certainly conducive to our great fame.