Fasting (Kitab Al-Siyam)
Dawud :: Book 13 : Hadith 2358
Narrated A Companion of the Prophet:
AbuBakr ibn AbdurRahman reported on the authority of a Companion of the Prophet (peace_be_upon_him): I saw the Prophet (peace_be_upon_him) commanding the people while he was travelling on the occasion of the conquest of Mecca not to observe fast. He said: Be strong for your enemy. The Apostle of Allah (peace_be_upon_him) fasted himself.