God will not punish you for a mistaken word in your oaths: but he will punish you in regard to an oath taken seriously. Its expiation shall be to feed ten poor persons with such middling food as ye feed your own families with, or to clothe them; or to set free a captive. But he who cannot find means, shall fast three days. This is the expiation of your oaths when ye shall have sworn. Keep then your oaths. Thus God maketh his signs clear to you, that ye may give thanks.