Oaths

Allah does not hold you accountable for thoughtless oaths, but He does for those made with intent. The expiation is feeding ten needy people, clothing them, or freeing a slave. If unable, then fasting for three days. Keep your oaths.

5:89Allah will not take you to task for that which is unintentional in your oaths, but He will take you to task for the oaths which ye swear in earnest. The expiation thereof is the feeding of ten of the needy with the average of that wherewith ye feed your own folk, or the clothing of them, or the liberation of a slave, and for him who findeth not (the wherewithal to do so) then a three days' fast. This is the expiation of your oaths when ye have sworn; and keep your oaths. Thus Allah expoundeth unto you His revelations in order that ye may give thanks.