Mahabharata 14.92.20
इत्यवश्यं मयैतद्वो वक्तव्यं द्विजपुंगवाःशृणुताव्यग्रमनसः शंसतो मे द्विजर्षभाः
ityavaśyaṃ mayaitadvo vaktavyaṃ dvijapuṃgavāḥśṛṇutāvyagramanasaḥ śaṃsato me dvijarṣabhāḥ
Our plain-language meaning of this verse is waiting for scholar review.