Valmiki Ramayana Yuddha Kanda Sarga 103 Shloka 22
Original Shlokaतेरावणधनुर्मुक्ताःशराःकाञ्चनभूषणाः । अभ्यवर्तन्तकाकुत्स्थंसर्पाभूत्वामहाविषाः ।।6.103.22।।
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रावणधनुर्मुक्ताः released from Ravana's bow, काञ्चनभूषणाः covered with gold, तेशराः those shafts, महाविषाः highly venomous, सर्पाः serpent, भूत्वा arising, काकुत्स्थम् to Kakuthsa, अभ्यवर्तन्त went near
The shafts released from Ravana's bow were covered with gold and highly venomous like serpents reached near Kakuthsa.