Valmiki Ramayana Yuddha Kanda Sarga 22 Shloka 17

ततः then, महामेरोः over the mighty Meru, उदयं rising, दिवाकरःइव like the Sun, सागरः Lord of ocean, समुद्रस्य ocean's, मध्यात् middle, स्वयम् himself, उत्थितः risen.

Then Sagara, the Lord of the ocean himself rising like the Sun over the mighty Meru Mountain rose from the middle of the ocean.