Mahabharata 13.128.23

धर्मः किंलक्षणः प्रोक्तः कथं वाचरितुं नरैःशक्यो धर्ममविन्दद्भिर्धर्मज्ञ वद मे प्रभो

dharmaḥ kiṃlakṣaṇaḥ proktaḥ kathaṃ vācarituṃ naraiḥśakyo dharmamavindadbhirdharmajña vada me prabho

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