Valmiki Ramayana Yuddha Kanda Sarga 70 Shloka 34
Original Shlokaस वायुसुनूःकुपितश्चिक्षेपशिखरंगिरेः । त्रिशिरास्तच्छरैस्तीक्ष्णैर्बिभेदबहुधाबली ।।6.70.34।।
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सः he, वायुसूनुः son of wind god, कुपितः in anger, गिरेः mountain, शिखरम् top, चिक्षेप hurled, बली mighty, त्रिशिराः Trisira, तीक्ष्णैः sharp, शरैः arrow, बहूधा several pieces, बिभेद split into.
The son of the wind god in anger hurled a top of the mountain on mighty Trisira, who split the mountain into several pieces with an arrow.