Mahabharata 3.109.14

नातप्ततपसा शक्यो द्रष्टुमेष महागिरिःआरोढुं वापि कौन्तेय तस्मान्नियतवाग्भव

nātaptatapasā śakyo draṣṭumeṣa mahāgiriḥāroḍhuṃ vāpi kaunteya tasmānniyatavāgbhava

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