Valmiki Ramayana Ayodhya Kanda Sarga 52 Shloka 95
Original Shlokaअवश्यं रक्षणं कार्यमदृष्टे विजने वने। अग्रतो गच्छ सौमित्रे सीता त्वामनुगच्छतु।।.2.52.95।।
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अदृष्टे unseen, विजने devoid of people, वने in the forest, अवश्यम् certainly, रक्षणम् protection, कार्यम् is to be rendered, सौमित्रे O Lakshmana, अग्रतः in front, गच्छ go, सीता Sita, त्वाम् you, अनुगच्छतु may follow.
In this desolate forest which we had never seen before we must certainly be concerned about our protection. O Lakshmana , let Sita follow you