Mahabharata 4.30.16

सूपस्करेषु शुभ्रेषु महत्सु च महारथाःपृथक्काञ्चनसंनाहान्रथेष्वश्वानयोजयन्

sūpaskareṣu śubhreṣu mahatsu ca mahārathāḥpṛthakkāñcanasaṃnāhānratheṣvaśvānayojayan

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