The Book of Pilgrimage (Kitab Al-Hajj)
Muslim :: Book 7 : Hadith 2949
This hadith has been narrated on the authority of 'Urwa with the same chain of transmitters. and in the hadith narrated by Humaid there is an addition (of these words):" Hisham said: Al-nass (speed of camel) is faster than al-'anaq."