Abu Dawud Book 7, Hadith Number 2335.Abu Dawud Book 7. Fasting Chapter : Not known. Narated By Abdullah ibn Umar : The people looked for the moon, so I informed the Apostle of Allah (PBUH) that I had sighted it. He fasted and commanded the people to fast. Related Previous Post Abu Dawud Book 7, Hadith Number 2337. Next Post Abu Dawud Book 7, Hadith Number 2334.