Chapter: Two men who race each other on their horses, each of them putting up some property (as a prize), and they bring in between them a muhallil (a third party) on the condition that if the muhallil outruns them both, whatever the two of them put up will be his, and if one of the two outruns the muhallil, he will keep his own property and take his companion's property (as well).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السبق والرمي / Q19770