Mahabharata 8.26.8

तं रथं रथिनां श्रेष्ठः कर्णोऽभ्यर्च्य यथाविधिसंपादितं ब्रह्मविदा पूर्वमेव पुरोधसा

taṃ rathaṃ rathināṃ śreṣṭhaḥ karṇo'bhyarcya yathāvidhisaṃpāditaṃ brahmavidā pūrvameva purodhasā

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