Mahabharata 3.200.23

यथा श्रुतिरियं ब्रह्मञ्जीवः किल सनातनःशरीरमध्रुवं लोके सर्वेषां प्राणिनामिह

yathā śrutiriyaṃ brahmañjīvaḥ kila sanātanaḥśarīramadhruvaṃ loke sarveṣāṃ prāṇināmiha

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