Sayyiduna Rifa'ah bin Rafi' al-Ansari (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) said: "O Allah, forgive the Ansar, the sons of the Ansar, their offspring and their neighbours."
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4519