Matsya Purana 41.19

41.19

kuryyāmapūrvaṃ na kṛtaṃ yadanyairvivitsamānaḥ kimu tatra sādhuḥ.
bruvāṇamevaṃ nṛpatiṃ yayātiṃ nṛpottamo vasumānabravīttam.. 41.18 ..

Then King Vasumân addressed Yayâti who was talking like that.—18.

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.