Vowing to sell a camel if it is cured

Q: My father vowed to sell his camel, which was then sick, if it recovered. The camel later recovered, grew fatter and had a big hump, but he did not sell it. Afterwards, the camel died. What is the ruling on this vow? May Allah reward you best!

A: Your father should have sold the camel when it was cured. He should make Kaffarah (expiation) for not fulfilling his vow by feeding ten needy persons or clothing them or freeing a believing slave.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.