Mahabharata 13.63.34

रथमश्वसमायुक्तं दत्त्वाश्विन्यां नरोत्तमःहस्त्यश्वरथसंपन्ने वर्चस्वी जायते कुले

rathamaśvasamāyuktaṃ dattvāśvinyāṃ narottamaḥhastyaśvarathasaṃpanne varcasvī jāyate kule

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