The ruling on one who had fasting upon him and then died

The questioner : Please go ahead. Peace be upon you. A sister is with us on the line. She says: Honorable Shaykh, a woman lived in the desert. When she reached puberty, she fasted, but her family forced her to break her fast out of mercy for her. She says, and she is shy to tell them that she had reached puberty, and she now does not know how much fasting she owes. She suffers from illnesses, and she used to fast with difficulty. Do her children owe anything, or an expiation?

The Shaykh : As for her children, they owe nothing.

The questioner : I mean, she passed away, Shaykh.

The Shaykh : If she passed away, then if they wish, they may fast on her behalf and divide up the fasting, with each person fasting a little. If they do not wish to, they owe nothing.

The questioner : She asks: Is fasting sufficient, or do we pay an expiation for each day, Shaykh?

The Shaykh : If they do not fast, they must pay an expiation.