Mahabharata 12.21.6

एवं कौन्तेय भूतानि तं तं धर्मं तथा तथातदा तदा प्रपश्यन्ति तस्माद्बुध्यस्व भारत

evaṃ kaunteya bhūtāni taṃ taṃ dharmaṃ tathā tathātadā tadā prapaśyanti tasmādbudhyasva bhārata

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