Mahabharata 3.90.2

त्वं हि धर्मान्परान्वेत्थ तपांसि च तपोधनश्रीमतां चापि जानासि राज्ञां धर्मं सनातनम्

tvaṃ hi dharmānparānvettha tapāṃsi ca tapodhanaśrīmatāṃ cāpi jānāsi rājñāṃ dharmaṃ sanātanam

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