Valmiki Ramayana Kishkindha Kanda Sarga 31 Shloka 19
Original Shlokaतान्गृहीतप्रहरणान्सर्वान्दृष्ट्वा तु लक्ष्मणः4.31.19।। बभूव द्विगुणं क्रुद्धो बह्विन्धन इवानलः।
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लक्ष्मणः Lakshmana, गृहीतप्रहरणान् seized weapons, तान् them, हरीन् monkeys, दृष्ट्वा on seeing, बह्विन्धनः lots of firewood, अनलः इव like fire, द्विगुणम् doubled, क्रुद्धः angry, बभूव became.
On seeing the monkeys wielding weapons, Lakshmana's anger doubled like logs of firewood put to burning.