If a person dies and has fasting remaining, is it obligatory for his guardian to feed one poor person for each day?

The questioner : If a person dies and has fasting remaining, is it obligatory for his guardian to feed a poor person on his behalf for each day?
If this is correct, what is the evidence, and does his guardian sin if he does not do it?

The Shaykh : As for the fasting of Ramadan, no one fasts on behalf of another. The hadith reported from the Prophet (peace and blessings be upon him) in his saying refers only to the fasting of a vow, meaning a fast that is not originally obligatory from Allah (Mighty and Majestic) like Ramadan. Rather, it is a means of drawing near to Allah (Mighty and Majestic) by making a vow upon himself to fast one day or more. If he then dies and is unable to perform and fulfill his vow, his guardian fasts on his behalf. If he does not do so, he sins, because the saying of the one upon whom are peace and blessings is in the nature of a command, as in many texts, such as His saying (Glorified and Exalted is He) meaning it is not permissible. And "his guardian fasted on his behalf" means he is commanded to perform this fasting. The phrase is a declarative sentence; "fasted" means the fasting took place, and this is not what he actually fasted, so it is an affirmation of the obligation of the fasting, meaning it is as if it is a realized fact. Therefore, he said . It appears to me that this expression, in terms of Arabic expression, is more eloquent than if he had said "let his guardian fast on his behalf." reports on a command that will occur, because it is in the nature of having occurred. This is like His saying (Glorified and Exalted is He) "has come," meaning it will certainly come, and therefore He expressed it with a past tense verb. Likewise and similar verses. This is an affirmation that this fasting is from the guardian of the deceased, and he has a vow of fasting upon him, so he must fast on his behalf. Yes.