Valmiki Ramayana Yuddha Kanda Sarga 99 Shloka 22
Original Shlokaतेनतस्यनिपातेनराक्षसस्यमहामृधे ।।6.99.22।। पफालहृदयंचास्य स पपातहतोभुवि ।
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महामृधे in that great conflict, तस्य his, तेन by that, निपातेन struck by the fist, अस्य his, राक्षसस्य Rakshasa's, हृदयम् heart, पफाल broke, सः he, हतः was killed, भुवि ground, पपात fell
In that great conflict, struck by the fist, the Rakshasa (Mahaparsva's) heart broke and killed and fell on the ground.