It was narrated from 'Abdullah bin Ka'b bin Malik from his father that :

he demanded payment owed by Ibn Abi Hadrad in the mosque. Their voices became so loud that the Messenger of Allah (ﷺ) heard them when he was in his house. He came out and called Ka'b who said: “Here I am, O Messenger of Allah (ﷺ)!” He said: “Waive this much of your loan,” and gestured with his hand to indicate half. He said: “I will do that,” and he said: “Get up and repay it.”

حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، وَيَحْيَى بْنُ حَكِيمٍ، قَالاَ حَدَّثَنَا عُثْمَانُ بْنُ عُمَرَ، أَنْبَأَنَا يُونُسُ بْنُ يَزِيدَ، عَنِ الزُّهْرِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ كَعْبِ بْنِ مَالِكٍ، عَنْ أَبِيهِ، أَنَّهُ تَقَاضَى ابْنَ أَبِي حَدْرَدٍ دَيْنًا لَهُ عَلَيْهِ فِي الْمَسْجِدِ حَتَّى ارْتَفَعَتْ أَصْوَاتُهُمَا حَتَّى سَمِعَهُمَا رَسُولُ اللَّهِ صلى الله عليه وسلم وَهُوَ فِي بَيْتِهِ فَخَرَجَ إِلَيْهِمَا فَنَادَى كَعْبًا فَقَالَ لَبَّيْكَ يَا رَسُولَ اللَّهِ قَالَ ‏"‏ دَعْ مِنْ دَيْنِكَ هَذَا ‏"‏ ‏.‏ وَأَوْمَأَ بِيَدِهِ إِلَى الشَّطْرِ فَقَالَ قَدْ فَعَلْتُ ‏.‏ قَالَ ‏"‏ قُمْ فَاقْضِهِ ‏"‏ ‏.‏