Mahabharata 7.1.35

रथातिरथसंख्यायां योऽग्रणीः शूरसंमतःपितृवित्ताम्बुदेवेशानपि यो योद्धुमुत्सहेत्

rathātirathasaṃkhyāyāṃ yo'graṇīḥ śūrasaṃmataḥpitṛvittāmbudeveśānapi yo yoddhumutsahet

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