Mahabharata 12.351.6

नाग उवाच · nāga uvāca

एतदेवंविधं दृष्टमाश्चर्यं तत्र मे द्विजसंसिद्धो मानुषः कायो योऽसौ सिद्धगतिं गतःसूर्येण सहितो ब्रह्मन्पृथिवीं परिवर्तते

etadevaṃvidhaṃ dṛṣṭamāścaryaṃ tatra me dvijasaṃsiddho mānuṣaḥ kāyo yo'sau siddhagatiṃ gataḥsūryeṇa sahito brahmanpṛthivīṃ parivartate

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