Valmiki Ramayana Aranya Kanda Sarga 64 Shloka 13
Original Shlokaज्ञातिपक्षविहीनस्य राजपुत्रीमपश्यतः।।3.64.13।। मन्ये दीर्घा भविष्यन्ति रात्रयो मम जाग्रतः।
1 source checked for this shloka
ज्ञातिपक्षविहीनस्य away from relatives, राजपुत्रीम् princess, अपश्यतः not seeing, जाग्रतः keeping awake, मम for me, रात्रयः nights, दीर्घाः long, भविष्यन्ति appear, मन्ये I think.
Away from relatives and away from the princess, I keep awake during nights which seem too long.