Chapter: It is permissible to lend animals and it is recommended to pay in full, giving something better than that which ts owed
Abu Huraira (Allah be pleased with him) reported: Allah's Messenger ( صلی اللہ علیہ وسلم ) 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.
Authentic