Praise be to Allah.
We hope that there is no blame on you and you do not have to do anything, because this is something regular which happens to people and it is not called negligence. Such things happen to people who grow date palms and people have farms; they may let the child go to the stream or pond and swim in it, and he may die because of that. These are regular things and cannot be helped; it will be forgiven if Allaah wills. End quote.