Valmiki Ramayana Kishkindha Kanda Sarga 4 Shloka 8
Original Shlokaतस्यायं पूर्वजः पुत्रो रामो नाम जनैः श्रुतः।।4.4.8।। शरण्यस्सर्वभूतानां पितुर्निर्देशपारगः।
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अयम् this is, तस्य his, पूर्वजः elder, पुत्रः son, रामो नाम by name Rama, जनैः by people, श्रुतः popular, सर्वभूतानाम् at all beings, शरण्यः protector, पितुः father's, निर्देशपारगः one who never fails to follow instructions.
'Here is his eldest son, popularly known as Rama. He is the protector of all beings and never failed his father's instructions.