Mahabharata 3.247.2

उपरिष्टादसौ लोको योऽयं स्वरिति संज्ञितःऊर्ध्वगः सत्पथः शश्वद्देवयानचरो मुने

upariṣṭādasau loko yo'yaṃ svariti saṃjñitaḥūrdhvagaḥ satpathaḥ śaśvaddevayānacaro mune

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