Is a mother considered legally negligent and liable for expiation after her young daughter's death following a fall from a table?

We hope that the mother incurs no sin for what is presumed of her tenderness and compassion, but she must pay expiation for the error, which is fasting for two consecutive months. Along with the fasting, she must pay blood money to the heirs of the daughter if her heirs do not pardon her, and this is borne by the 'Aqila (agnatic kinsmen responsible for paying blood money). The mother does not inherit anything from it.