"The Messenger of Allah ﷺ took a camel of a particular age on loan. He gave back to him a camel of a better age than the one he was given. He said: 'The best among you is the best in repaying.'" He said: There is something on this topic from Abu Rafi'.
اسْتَقْرَضَ رَسُولُ اللَّهِ ﷺ سِنًّا فَأَعْطَاهُ سِنًّا خَيْرًا مِنْ سِنِّهِ وَقَالَ خِيَارُكُمْ أَحَاسِنُكُمْ قَضَاءً قَالَ وَفِي الْبَابِ عَنْ أَبِي رَافِعٍ
Messenger of Allah ﷺ took a camel on loan, and then returned him (the lender) the camel of a more mature age and said: Good among you are those who are good in clearing off the debt.
اسْتَقْرَضَ رَسُولُ اللَّهِ ﷺ سِنًّا فَأَعْطَى سِنًّا فَوْقَهُ وَقَالَ خِيَارُكُمْ مَحَاسِنُكُمْ قَضَاءً
There came a person demanding a camel from Messenger of Allah ﷺ. He (the Holy Prophet) said: Give him (the camel) of that age or of more mature age, and said: Best among you is one who is best in clearing off the debt.
جَاءَ رَجُلٌ يَتَقَاضَى رَسُولَ اللَّهِ ﷺ بَعِيرًا فَقَالَ أَعْطُوهُ سِنًّا فَوْقَ سِنِّهِ وَقَالَ خَيْرُكُمْ أَحْسَنُكُمْ قَضَاءً
[Machine] The Messenger of Allah ﷺ borrowed from a man a year, so he gave him more than a year. He then said, "The best among you are those who fulfill their commitments."
اسْتَقْرَضَ رَسُولُ اللهِ ﷺ مِنْ رَجُلٍ سِنًّا فَأَعْطَاهُ سِنًّا فَوْقَ سِنِّهِ فَقَالَ خِيَارُكُمْ أَحَاسِنُكُمْ قَضَاءً