(1) باب الشَّرِكَةِ فِي الطَّعَامِ وَالنَّهْدِ وَالْعُرُوضِ
Narrated Abu Musa:
The Prophet (ﷺ) 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."
Reference: Sahih al-Bukhari 2486
In-book reference: Book 47, Hadith 4
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 44, Hadith 666