Valmiki Ramayana Yuddha Kanda Sarga 128 Shloka 9
Original Shlokaमैथिल्यन्वेषणंचैवयथाचाधिगतात्वया । लङ्घयित्वामहातोयमापगापतिमव्ययम् ।।6.128.9।।
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मैथिल्यन्वेषणंचैव search for Mythili, त्वया by you, महातोयम् huge ocean, अव्ययम् never decreasing, आपगापतिम् vast stretch of water, लङ्घयित्वा leaping across, यथआ similarly, अधिगता finding Sita
"You may tell him of the search for Mythili by you, crossing the vast never decreasing stretch of water, leaping across and finding Sita."