Valmiki Ramayana Yuddha Kanda Sarga 103 Shloka 26
Original Shlokaतेराघवधनुर्मुक्तारुक्मपुङ्खाःशिखिप्रभाः । सुपर्णाःकाञ्चनाभूत्वाविचेरुःसर्पशत्रवः ।।6.103.26।।
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राघवधनुर्मुक्ताः discharged from Raghava's bow, रुक्मपुङ्खाःgolden feathered eagles, शिखिप्रभाः shine of the feathers, ते those, सर्पशत्रवः reptiles and snakes, काञ्चनाः golden, सुवर्णाः all, भूत्वा arising, विचेरुःflew
By the missile discharged by Raghava those reptiles and snakes turned into golden feathered eagles and by the shine of the feathers, the reptiles flew.