Mahabharata 9.30.10

तथा पौलस्त्यतनयो रावणो नाम राक्षसःरामेण निहतो राजन्सानुबन्धः सहानुगःक्रियया योगमास्थाय तथा त्वमपि विक्रम

tathā paulastyatanayo rāvaṇo nāma rākṣasaḥrāmeṇa nihato rājansānubandhaḥ sahānugaḥkriyayā yogamāsthāya tathā tvamapi vikrama

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