Mahabharata 3.198.76

तं सदाचारमाश्चर्यं पुराणं शाश्वतं ध्रुवम्धर्मं धर्मेण पश्यन्तः स्वर्गं यान्ति मनीषिणः

taṃ sadācāramāścaryaṃ purāṇaṃ śāśvataṃ dhruvamdharmaṃ dharmeṇa paśyantaḥ svargaṃ yānti manīṣiṇaḥ

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