Sahih Bukhari | Volume 3 | Hadith Number 666

Narrated by Abu Musa
The Prophet said, "When the people of Ash'ari tribe ran short of food during the holy battles, or the food of their families in Medina ran short, they would collect all their remaining food in one sheet and then distribute it among themselves equally by measuring it with a bowl. So, these people are from me, and I am from them."