Mahabharata 14.52.5

वायुर्वेगेन महता रथस्य पुरतो ववौकुर्वन्निःशर्करं मार्गं विरजस्कमकण्टकम्

vāyurvegena mahatā rathasya purato vavaukurvanniḥśarkaraṃ mārgaṃ virajaskamakaṇṭakam

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