 तपसा पुरुषव्याघ्र राक्षसोऽयं न शक्यते।शस्त्रेण युधि निर्जेतुं राक्षसं निखनावहे।। 
 O Lakshmana, best among men, this demon by virtue of his penance cannot be killed with any weapon in war. Therefore, let us bury him. 