Valmiki Ramayana Yuddha Kanda Sarga 58 Shloka 24

प्रहस्तः Prahastha, तत् then कर्म exploit, अमृष्यमाणः intolerant, रथम् chariot, आश्रितः got on to, धनुष्पाणिः bow in hand, वनौकसाम् monkeys, घोरम् dreadful, कदनम् havoc, चकार caused.

Then intolerant of the exploit, Prahastha got on to the chariot with bow in hand and caused dreadful havoc among the monkeys.