Valmiki Ramayana Yuddha Kanda Sarga 112 Shloka 21

उक्तवाक्यम् having spoken like that, विक्रान्तम् valiant, तंराजपुत्रम् prince, शोकसन्तप्तः immersed in grief, विभीषणः Vibheeshana, अनन्तरम् after that, भ्रातुः brother, हितम् good, उवाच spoke

Having spoken that way by the valiant prince to Vibheeshana, who was immersed in grief, spoke to Rama for the good of his brother.