Is fasting made up on behalf of a sick father?

Question : This questioner also says: Honorable Shaykh, her father is ill and unable to fast. Do they make up the fasts for him?

Answer : I say it is not permissible for them to fast on his behalf, because a living person does not fast on behalf of another living person. However, they feed a poor person for each day, one sa' (a dry measure of about 3 kg) of food. The sa' known in Najd is five mudds (a quarter of a sa' each), because the Prophet’s (peace and blessings be upon him) mudd is a quarter of a sa', and the Prophet’s (peace and blessings be upon him) sa' is four-fifths of the sa' known in Najd. Accordingly, the sa' found in Najd is five mudds. However, they must feed poor people equal in number to the days. This means it is not permissible to gather the food and give it to, for example, five people; rather, there must be thirty poor people if the month is full, or twenty-nine poor people if the month is short.

The presenter : May Allah reward you with good,