Mahabharata 7.74.4

रथमार्गप्रमाणं तु कौन्तेयो निशितैः शरैःचकार तत्र पन्थानं ययौ येन जनार्दनः

rathamārgapramāṇaṃ tu kaunteyo niśitaiḥ śaraiḥcakāra tatra panthānaṃ yayau yena janārdanaḥ

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