Valmiki Ramayana Yuddha Kanda Sarga 22 Shloka 44
Original Shlokaअयंसौम्य: नलोनामतनयोविश्वकर्मणः । पित्रादत्तवरशीमान्प्रतिमोविश्वकर्मणाः ।।6.22.44।।
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सौम्य noble one, श्रीमान् prosperous one, नलोनाम named Nala, अयम् this, विश्वकर्मणः by Vishwakarma's, तनयः son, पित्रा father, दत्तवरः obtained boons, विश्वकर्मणः in architecture, प्रतिमः equal to father.
"Noble Rama This prosperous one named Nala is the son of Vishwakarma. Since he has obtained boons from his father, he is equal to his father in architecture."