Valmiki Ramayana Yuddha Kanda Sarga 69 Shloka 45
Original Shlokaतेराक्षसबलंघोरंप्रविश्यहरियूथपाः । विचेरुरुद्यतैश्शैलैर्नगाश्शिखरिणोयथा ।।6.69.45।।
1 source checked for this shloka
ते those, हरियूथपाः monkey leaders, घोरम् dreadful, राक्षसबलम् Rakshasa army, प्रविश्य entering, उद्यतैः uplifted, शैलैः rocks, शिखरिणः peaks of mountains, नगाःयथा forest trees, विचेरुः shone.
Those monkey leaders entering dreadful Rakshasa army uplifted rocks and mountains with trees and shone.