Mahabharata 7.77.20

येनैतद्दीर्घकालं नो भुक्तं राज्यमकण्टकम्अप्यस्य युधि विक्रम्य छिन्द्यां मूर्धानमाहवे

yenaitaddīrghakālaṃ no bhuktaṃ rājyamakaṇṭakamapyasya yudhi vikramya chindyāṃ mūrdhānamāhave

Our plain-language meaning of this verse is waiting for scholar review.