Sahih Bukhari Volume 3, Book 43, Hadith 2394

حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا سُفْيَانُ، عَنْ سَلَمَةَ، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ كَانَ لِرَجُلٍ عَلَى النَّبِيِّ صلى الله عليه وسلم سِنٌّ مِنَ الإِبِلِ فَجَاءَهُ يَتَقَاضَاهُ فَقَالَ صلى الله عليه وسلم ‏"‏ أَعْطُوهُ ‏"‏‏.‏ فَطَلَبُوا سِنَّهُ، فَلَمْ يَجِدُوا لَهُ إِلاَّ سِنًّا فَوْقَهَا‏.‏ فَقَالَ ‏"‏ أَعْطُوهُ ‏"‏‏.‏ فَقَالَ أَوْفَيْتَنِي، وَفَّى اللَّهُ بِكَ‏.‏ قَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ إِنَّ خِيَارَكُمْ أَحْسَنُكُمْ قَضَاءً ‏"‏‏

Narrated By Abu Huraira : The Prophet owed a camel of a certain age to a man who came to demand it back. The Prophet ordered his companions to give him. They looked for a camel of the same age but found nothing but a camel one year older. The Prophet told them to give it to him. The man said, "You have paid me in full, and may Allah pay you in full." The Prophet said, "The best amongst you is he who pays his debts in the most handsome manner."