Valmiki Ramayana 2.112.16

आगता त्वामियं बुद्धि: स्वजा वैनयिकी च या ।भृशमुत्सहसे तात रक्षितुं पृथिवीमपि॥

āgatā tvāmiyaṃ buddhi: svajā vainayikī ca yā |bhṛśamutsahase tāta rakṣituṃ pṛthivīmapi ||

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