Valmiki Ramayana 6.69.84

अथोवाच महातेजाः सुग्रीवो वानराधिपः।कुमारमङ्गदं वीरं शक्रतुल्यपराक्रमम्॥

athovāca mahātejāḥ sugrīvo vānarādhipaḥ |kumāramaṅgadaṃ vīraṃ śakratulyaparākramam ||

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