What should a Muslim daughter do with the ashes of her deceased mother, who converted to Islam two months before her death, and whose body was cremated by the mother's non-Muslim family?

The ashes remaining after burning a deceased Muslim must be buried, whether the burning was intentional or unintentional, because the jurists have stipulated the obligation of burying all parts of the deceased, and the ashes may contain parts of the burned body. If it has been transformed (into ashes), it is also to be buried because it is the respected ashes of a Muslim. It is preferable that the burial be in a Muslim cemetery.