Mahabharata 3.249.11
यं षट्सहस्रा रथिनोऽनुयान्ति; नागा हयाश्चैव पदातिनश्चजयद्रथो नाम यदि श्रुतस्ते; सौवीरराजः सुभगे स एषः
yaṃ ṣaṭsahasrā rathino'nuyānti; nāgā hayāścaiva padātinaścajayadratho nāma yadi śrutaste; sauvīrarājaḥ subhage sa eṣaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book