Valmiki Ramayana Bala Kanda Sarga 17 Shloka 12
Original Shlokaपावकस्य सुतश्श्रीमान् नीलोऽग्निसदृशप्रभ:। तेजसा यशसा वीर्यादत्यरिच्यत वानरान्।।1.17.12।।
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पावकस्य Agni's (the fire god), सुत: son, श्रीमान् prosperous , अग्निसदृशप्रभ: equal to Agni in brightness, नील: Neela, तेजसा by energy, यशसा by fame, वीर्यात् due to prowess, वानरान् other monkeys, अत्यरिच्यत surpassed.
Neela, the prosperous son of Agni the firegod who equalled him in glow surpassed other monkeys in energy, renown and prowess.