Abdul-Rahman bin Kaab bin Malik reported,

His father was one of the three whose repentance was accepted. A companion of the Prophet ﷺ reported that the Prophet ﷺ stood up that day to deliver a sermon. He praised Allah and extolled Him, then sought forgiveness for the martyrs who had been killed on the day of Uhud. Then he said, "Company of Emigrants, you are growing in number, while the Ansar are not increasing. The Ansar are my trusted confidants to whom I have turned for refuge. Honor those among them who are honorable, and overlook the faults of those who err among them, for they have fulfilled what was due from them, and what remains is what is due to them."

Ahmad 21951

Sahih

حدثنا عبد الرزاق عن معمر قال قال الزهري وأخبرني

عبد الرحمن بن كعب بن مالك

وكان أبوه أحد الثلاثة الذين تيب عليهم عن رجل من أصحاب النبي ﷺ أن النبي ﷺ قام يومئذ خطيبا فحمد الله وأثنى عليه واستغفر للشهداء الذين قتلوا يوم أحد ثم قال إنكم يا معشر المهاجرين تزيدون وإن الأنصار لا يزيدون وإن الأنصار عيبتي التي أويت إليها أكرموا كريمهم وتجاوزوا عن مسيئهم فإنهم قد قضوا الذي عليهم وبقي الذي لهم

أحمد 21951صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
A man from the Companions
Numbering
Darussalam 21951
Ahmad 21951