Mahabharata 12.326.31

नित्यं हि नास्ति जगति भूतं स्थावरजङ्गमम्ऋते तमेकं पुरुषं वासुदेवं सनातनम्सर्वभूतात्मभूतो हि वासुदेवो महाबलः

nityaṃ hi nāsti jagati bhūtaṃ sthāvarajaṅgamamṛte tamekaṃ puruṣaṃ vāsudevaṃ sanātanamsarvabhūtātmabhūto hi vāsudevo mahābalaḥ

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