(25) باب الْمُسَابَقَةِ بَيْنَ الْخَيْلِ وَتَضْمِيرِهَا
It has been narrated on the authority of Ibn 'Umar that the Messenger of Allah (ﷺ) had a race of the horses which had been especially prepared for the purpose from Hafya' to Thaniyyat al-Wada' (the latter being the winning post), and of those which had not been trained from Thaniyya to the mosque of Banu Zuraiq, and Ibn Umar was among those who took part in this race.
Reference: Sahih Muslim 1870 a
In-book reference: Book 33, Hadith 139
USC-MSA web (English) reference(deprecated numbering scheme): Book 20, Hadith 4610