Mahabharata 3.238.21

वैशंपायन उवाच · vaiśaṃpāyana uvāca

एवं चिन्तापरिगतो दुःशासनमथाब्रवीत्दुःशासन निबोधेदं वचनं मम भारत

evaṃ cintāparigato duḥśāsanamathābravītduḥśāsana nibodhedaṃ vacanaṃ mama bhārata

Our plain-language meaning of this verse is waiting for scholar review.