Valmiki Ramayana Bala Kanda Sarga 43 Shloka 13
Original Shlokaसुचक्षुश्चैव सीता च सिन्धुश्चैव महानदी। तिस्रस्त्वेता दिशं जग्मु: प्रतीचीं तु शुभोदका:।।1.43.13।।
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सुचक्षु: Suchakshu, सीता च Sita, सिन्धु: called Sindhu, महानदी च a great river, शुभोदका: having auspicious waters, एता: तिस्र: these three, प्रतीचीं दिशम् westwards, जग्मु: had gone
Auspicious Suchakshu, Sita and a great river Sindhu, these three great rivers flowed westwards.