Valmiki Ramayana Bala Kanda Sarga 72 Shloka 11

एवं भवतु let it be so, व: भद्रं: prosperity to you, इमे these, कुशध्वजसुते daughters of Kusadhwaja, सहितौ together moving, शत्रुघ्नभरतौ for Satrughna and Bharata, उभौ for both of them, पत्न्यौ as wives, भजेताम् let them serve.

"Let it be so, Be blessed Let these two daughters of Kusadhwaja (Srutakirti and Mandavi) be the wives of Satrughna and Bharata respectively and serve them.