Sahih Bukhari | Volume 9 | Hadith Number 429

Narrated by Anas bin Malik
Allah's Apostle used to perform the 'Asr prayer and then one could reach the 'Awali (a place in the outskirts of Medina) while the sun was still quite high.

Narrated Yunus: The distance of the 'Awali (from Medina) was four or three miles.