Valmiki Ramayana Yuddha Kanda Sarga 21 Shloka 28
Original Shlokaतोयवेगस्समुद्रस्यसनक्रमकरोमहान् । सम्बभूवमहाघोरस्समारुतरवस्तदा ।।6.21.28।।
1 source checked for this shloka
समुद्रस्य ocean's, समीनमकरः with fishes and crocodiles, तदा similarly, समारुतरवः with wind, महान् powerful, सः that, तोयवेगः rush of water, महाघोरः terrible, बभूव seemed.
Then the ocean seemed terrible with the fish and crocodiles rushing out with the speed of water and powerful wind.