Sahih Bukhari Volume 4, Book 56, Hadith 2869

حَدَّثَنَا قَبِيصَةُ، حَدَّثَنَا سُفْيَانُ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ أَجْرَى النَّبِيُّ صلى الله عليه وسلم مَا ضُمِّرَ مِنَ الْخَيْلِ مِنَ الْحَفْيَاءِ إِلَى ثَنِيَّةِ الْوَدَاعِ، وَأَجْرَى مَا لَمْ يُضَمَّرْ مِنَ الثَّنِيَّةِ إِلَى مَسْجِدِ بَنِي زُرَيْقٍ‏.‏ قَالَ ابْنُ عُمَرَ وَكُنْتُ فِيمَنْ أَجْرَى‏.‏ قَالَ عَبْدُ اللَّهِ حَدَّثَنَا سُفْيَانُ قَالَ حَدَّثَنِي عُبَيْدُ اللَّهِ‏.‏ قَالَ سُفْيَانُ بَيْنَ الْحَفْيَاءِ إِلَى ثَنِيَّةِ الْوَدَاعِ خَمْسَةُ أَمْيَالٍ أَوْ سِتَّةٌ، وَبَيْنَ ثَنِيَّةِ إِلَى مَسْجِدِ بَنِي زُرَيْقٍ مِيلٌ‏

Narrated By 'Abdullah bin 'Umar : The Prophet arranged for a horse race amongst the horses that had been made lean to take place between Al-Hafya'' and Thaniyat Al-Wada' (i.e. names of two places) and the horses which had not been mad.? lean from Ath-Thaniyat to the mosque of Bani Zuraiq. I was also amongst those who took part in that horse race. Sufyan, a sub-narrator, said, "The distance between Al-Hafya and Thaniya Al-Wada' is five or six miles; and between Thaniya and the mosque of Bani Zuraiq is one mile."