What is the expiation for breaking an oath not to eat after ten o'clock due to emergency circumstances, and can a monetary value be given instead of fasting?

An expiation for an oath (kaffarat yamin) becomes obligatory upon whoever breaks their oath, and this expiation is not waived due to excuses. The expiation for an oath is to feed ten poor persons, or clothe them, or free a slave. If one cannot find any of these, then it is to fast for three days. Fasting is not sufficient unless one is unable to feed or clothe. It is permissible, according to some scholars, to give money instead of feeding or clothing if it serves the interest of the poor person.