Mahabharata 3.272.12

रावणिस्तु यदा नैनं विशेषयति सायकैःततो गुरुतरं यत्नमातिष्ठद्बलिनां वरः

rāvaṇistu yadā nainaṃ viśeṣayati sāyakaiḥtato gurutaraṃ yatnamātiṣṭhadbalināṃ varaḥ

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