The Messenger of Allah ﷺ borrowed a young camel, and when the camels of the sadaqah (alms) came to him, he ordered me to pay the man his young camel. I said: I find only an excellent camel in its seventh year. So the Prophet ﷺ said: Give it to him, for the best person is he who discharges his debt in the best manner. (Using translation from Abū Dāʾūd 3346)   

عَنْ أَبِي رَافِعٍ مَوْلَى رَسُولِ اللَّهِ ﷺ قَالَ اسْتَسْلَفَ رَسُولُ اللَّهِ ﷺ بَكْرًا فَجَاءَتْ إِبِلٌ مِنْ إِبِلِ الصَّدَقَةِ قَالَ أَبُو رَافِعٍ فَأَمَرَنِي أَنْ أَقْضِيَ الرَّجُلَ بَكْرَهُ فَقُلْتُ لَمْ أَجِدْ فِي الْإِبِلِ إِلَّا جَمَلًا خِيَارًا رَبَاعِيًا فَقَالَ رَسُولُ اللَّهِ ﷺ «أَعْطِهِ إِيَّاهُ فَإِنَّ خَيْرَ النَّاسِ أَحْسَنُهُمْ قَضَاءً» قَالَ عَبْد اللَّهِ هَذَا يُقَوِّي قَوْلَ مَنْ يَقُولُ الْحَيَوَانُ بِالْحَيَوَانِ