Bukhari :: Book 1 :: Volume 8 :: Hadith 412
Narrated 'Abdullah bin 'Umar:
Allah's Apostle ordered for a horse race; the trained horses were to run from a place called Al-Hafya' to Thaniyat Al-Wada' and the horses which were not trained were to run from Al-Thaniya to the Masjid (mosque of) Bani Zuraiq. The sub narrator added: Ibn Umar was one of those who took part in the race.
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