Abu Dawud Book 8, Hadith Number 2777.
Chapter : Not known.
Narated By AbuSa’id al-Khudri : The Apostle of Allah (PBUH) said: Beware of the wages of a distributor of booty (qusamah). We asked: What is qusamah (wages of a distributor)? He said: It means a thing which is shared by the people, and then it is reduced.