Valmiki Ramayana Kishkindha Kanda Sarga 15 Shloka 18
Original Shlokaतव भ्रातुर्हि विख्यातस्सहायो रणकर्कशः। रामः परबलामर्दी युगान्ताग्निरिवोत्थितः4.15.18।।
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रणकर्कशः crushing the foes in war, विख्यातः famous man, उत्थितः sprung up, युगान्ताग्निरिव like fire at the end of creation, परबलामर्दी who slayed strong enemies like Khara, सः रामः that Rama, ते your, भ्रातुः brother's, सहायः हि will help.
'Rama, famous for crushing foes in war, like the fire that breaks out at the dissolution of the world, has slain strong enemies like Khara and will help your brother.