Mahabharata 14.60.18

एको ह्येकेन सततं युध्यमानो यदि प्रभोन स शक्येत संग्रामे निहन्तुमपि वज्रिणा

eko hyekena satataṃ yudhyamāno yadi prabhona sa śakyeta saṃgrāme nihantumapi vajriṇā

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