Valmiki Ramayana Sundara Kanda Sarga 31 Shloka 8
Original Shlokaतस्य सत्याभिसन्धस्य वृद्धस्य वचनात्पितुः। सभार्यस्सह च भ्रात्रा वीरः प्रव्राजितो वनम्।।5.31.8।।
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सत्याभिसन्धस्य ever steadfast in truth, वृद्धस्य of the aged, पितुः father, तस्य his, वचनात् honouring the word, वीरः hero, सभार्यः along with wife, सह च भ्रात्रा and accompanied by his brother, वनम् forest, प्रव्राजितः went as a wanderer.
"Honouring the word of his aged father who was ever steadfast in truth, Rama left for the forest along with his wife and brother.