Mahabharata 1.150.16

वृकोदरबलो नान्यो न भूतो न भविष्यतियोऽभ्युदीयाद्युधि श्रेष्ठमपि वज्रधरं स्वयम्

vṛkodarabalo nānyo na bhūto na bhaviṣyatiyo'bhyudīyādyudhi śreṣṭhamapi vajradharaṃ svayam

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