Mahabharata 13.74.28

धारणं सर्ववेदानां सर्वतीर्थावगाहनम्सत्यं च ब्रुवतो नित्यं समं वा स्यान्न वा समम्

dhāraṇaṃ sarvavedānāṃ sarvatīrthāvagāhanamsatyaṃ ca bruvato nityaṃ samaṃ vā syānna vā samam

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