Silsilat al-Ahadith al-Sahihah

The Noble Prophet (peace and blessings of Allah be upon him) said: "The Ansar are my sincere companions and confidants; other people increase and decrease. Accept the virtues of the Ansar and overlook their faults." This hadith is narrated from Sayyiduna Anas, Sayyiduna Usaid bin Hudair, Sayyiduna Abu Sa'id Khudri, and Sayyiduna Ka'b bin Malik (may Allah be pleased with them).