Valmiki Ramayana Yuddha Kanda Sarga 22 Shloka 53
Original Shlokaतेनगान्नगसङ्काशाश्शाखामृगगणर्षभाः । बभञ्जुःवानरास्तत्रप्रचकर्षुश्चसागरम् ।।6.22.53।।
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नगसङ्काशाः mountain like, ते those, शाखामृगगणर्षभाः bulls among Vanaras, तत there upon, नगान् from the mountain, पादपान् roots of trees, बभञ्जुः collected, सागरम् into the sea, प्रचकर्षुश्च started moving.
Mountain like bodied Vanara bulls there upon started collecting roots of trees from the foot of mountain and moved them into the sea.