Abu Dawud Book 2, Hadith Number 945.Abu Dawud Book 2. Prayer Chapter : Not known. Narated By AbuDharr : The Prophet (PBUH) said: When one of you gets up to pray, he must not remove pebbles, for mercy is facing him. Related Previous Post Abu Dawud Book 2, Hadith Number 948. Next Post Abu Dawud Book 2, Hadith Number 944.