Sahih al-Bukhari — Merits of the Helpers in Madinah (Ansaar) — Hadith No: 3844
Translation
Narrated Ghailan bin Jarir:We used to visit Anas bin Malik and he used to talk to us about the Ansar, and used to say to me: "Your people did so-and-so on such-and-such a day, and your people did so-and-so on such-and-such a day