Valmiki Ramayana Ayodhya Kanda Sarga 26 Shloka 37
Original Shlokaसा त्वं वसेह कल्याणि राज्ञस्समनुवर्तिनी। भरतस्य रता धर्मे सत्यव्रतपरायणा।।2.26.37।।
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कल्याणि O auspicious one, सा त्वम् so you, राज्ञः of the king, भरतस्य of Bharata, समनुवर्तिनी an obedient lady, धर्मे in righteousness, रता absorbed one, सत्यव्रत परायणा following the truth and the vows, इह वस live here.
O auspicious one live here by being obedient to king Bharata. Absorbed in righteousness, follow truth and (religious) vows.