There came a person demanding a camel from Allah's Messenger (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.
Sahih Muslim Book 22, Hadith 151
← Previous Hadith Allah's Messenger (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.

Sahih Muslim Book 22, Hadith 150 Next Hadith → There came a slave and pledg- ed allegiance to Allah's Apostle (ﷺ) on migration; he (the Holy Prophet) did not know that he was a slave. Then there came his master and demanded him back, whereupon Allah's Apostle (ﷺ) said: Sell him to me. And he bought him for two black slaves, and he did not afterwards take allegiance from anyone until he had asked him whether he was a slave (or a free man)

Sahih Muslim Book 22, Hadith 152