Valmiki Ramayana 6.41.23

अवतीर्यं च धर्मात्मा तस्माच्छैलात् स राघवः ।परैः परमदुर्धर्षं ददर्श बलमात्मनः॥

avatīryaṃ ca dharmātmā tasmācchailāt sa rāghavaḥ |paraiḥ paramadurdharṣaṃ dadarśa balamātmanaḥ ||

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