Obligation of a mother fasting as Kaffarah whose son fell in a tank full of water and drowned

Q: I had a twenty-six month old son who fell in a water tank and drowned; should I fast or not?

A: If the child's mother is at fault by leaving the child alone near the open tank, she must offer a Kaffarah (expiation); freeing a believing slave, if she can not find that, she must fast for two consecutive months. If it is not her fault, meaning that she left him in a secure place, but he crawled to the open tank, there is no blame on her, for the general rule is that she is innocent unless proven otherwise.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.