Kaab had a debt owed to him by Abdullah bin Abu Hadrad al-Aslami. He met him and pressed him for payment until their voices grew loud. The Messenger of Allah ﷺ passed by them and called out, "Kaab!" He gestured with his hand as if to say, take half. So Kaab took half of what was owed to him and forgave the other half.
حدثنا حسن قال حدثنا ابن لهيعة قال حدثنا عبد الرحمن الأعرج عن عبد الله بن كعب
أنه كان له مال على عبد الله أبي حدرد الأسلمي فلقيه فلزمه حتى ارتفعت الأصوات فمر بهما رسول الله ﷺ فقال يا كعب فأشار بيده كأنه يقول النصف فأخذ نصفا مما عليه وترك النصف