Mahabharata 12.261.30
द्वंद्वारामेषु सर्वेषु य एको रमते मुनिःपरेषामननुध्यायंस्तं देवा ब्राह्मणं विदुः
dvaṃdvārāmeṣu sarveṣu ya eko ramate muniḥpareṣāmananudhyāyaṃstaṃ devā brāhmaṇaṃ viduḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book