Riyad as-Salihin 1367
Abu Hurairah (May Allah be pleased with him) reported:
A man demanded of the Prophet (ﷺ) for repayment of a loan and was harsh to him. His Companions were about to attack him, but he (ﷺ) said, "Leave him, as the creditor is entitled to make a demand. Give him a camel of the same age as the camel that is due to him." They said: "We find a better camel senior to it in age." He (ﷺ) said, "Then buy it and give it to him; verily the best of you is the one who is the best in discharging his obligations (repayment of loans)." [Al- Bukhari and Muslim] .
وعن أبي هريرة رضي الله عنه أن رجلا أتى النبي صلى الله عليه وسلم يتقاضاه فأغلظ له فهم به أصحابه، فقال رسول الله صلى الله عليه وسلم ‏:‏ ‏"‏دعوه فإن لصاحب الحق مقالا‏"‏ ثم قال‏:‏ ‏"‏أعطوه سنا مثل سنه‏"‏ قالوا‏:‏ يا رسول الله لا نجد إلا أمثل من سنه، قال‏:‏ ‏"‏أعطوه فإن خيركم أحسنكم قضاء‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏ ‏.‏