Mahabharata 7.74.6

रथशिक्षां तु दाशार्हो दर्शयामास वीर्यवान्उत्तमाधममध्यानि मण्डलानि विदर्शयन्

rathaśikṣāṃ tu dāśārho darśayāmāsa vīryavānuttamādhamamadhyāni maṇḍalāni vidarśayan

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