If he fulfils his vow, is it permissible for him to eat from it?

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Should he fulfil his promise to an idol-worshipper?
He swore oaths repeatedly and broke them; should he offer one expiation or several?

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Related Answers:
He swore on the Qur’aan that he would not go to more than one doctor, and he wants to break that oath
He said to his wife: I swear a threefold oath (of divorce) that you will go to school
She vowed to fast for a month if Allaah caused her husband to mend his ways
Should he fulfil his promise to an idol-worshipper?
He swore oaths repeatedly and broke them; should he offer one expiation or several?

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