Valmiki Ramayana Yuddha Kanda Sarga 55 Shloka 26
Original Shlokaबाहुभिःपरिघाकारैर्युध्यन्तःपर्वतोपमाः ।।6.55.26।। हरयोभीमकर्माणोराक्षसान्झघ्नुराहवे ।
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भीमकर्माणः terrific deeds, पर्वतोपमाः hills like, हरयः Vanaras, परिघाकारैः resembling iron bars, बाहुभिः many, युध्यन्तः in battle, आहवे attacked, राक्षसान् Rakshasas, जघ्नुः went on.
The Vanaras of terrific deeds, like hills in form, resembling iron bars attacked many Rakshasas in the battle.