Valmiki Ramayana Ayodhya Kanda Sarga 16 Shloka 17
Original Shlokaसा प्रहृष्टा महाराजं हितकामानुवर्तिनी। जननी चार्थकामा मे केकयाधिपतेस्सुता।।2.16.17।।
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केकयाधिपतेः सुता daughter of the king of Kekaya (Kaikeyi), जननी च my mother also, सा she, प्रहृष्टा being extremely happy, हितकामा desirous of (my) benefit, महाराजम् to the king, अनुवर्तिनी following, मे my, अर्थकामा seeks my wellbeing.
My mother, daughter of the king of Kekaya, knows the king's intention and, heppy to do me good, seeks my wellbeing.