Matsyapurana 41.17

41.17

dharmyaṃ mārgaṃ cintayāno yaśasyaṃ kuryāttapo dharmamavekṣamāṇaḥ
na madvidho dharmabuddhirhi rājā hy evaṃ kuryātkṛpaṇaṃ māṃ yathāttha //

Yayâti.—"King! an equally valiant king does not accept help and support from his compeer. A king, even getting into trouble through accident, should never do anything undignified. The thinker of Dharma, the knower of Dharma and fame, the learned like myself should never do such a thing as you wish me to do. What has not been done before, I can never do now.”—16-17.