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Fasting of very weak/skinny person.


Is it still very important to do fasting if a person is very skinny like skeleton?


Salamun Alaykum

Thank you for your query.

Fasting in wajib on every healthy man. If fasting harms a person, then it is not wajib for him to fast. Therefore, fasting for an ill person, which would worsen his illness or health if he fasts is not Permissible. But if a person can fast and has no problem then it will still be wajib on him to fast. Allah(swt) is so merciful and doesn’t put a burden in the case of fasting on someone who isn’t able to.

According to Ayatullah al-Udhma Sayyid Ali Sistany:

Ruling 1696. If someone has an illness that makes him very thirsty and he cannot bear being thirsty, or it is excessively difficult for him to bear it, then fasting is not obligatory on him. However, in the second case, he must give one mudd of food to a poor person for each missed fast; and in the event that he is able to fast afterwards, it is not obligatory on him to make them up.

Question: What is the Islamic ruling about someone who is suffering from a disease? How should he go about fasting?

Answer: He who fears for himself of falling ill as a result of fasting is not required to fast. Nor is he who believes that fasting would worsen his poor state of health in any way, be it hampering his recovery or increasing his pain. This should, however, be commensurate with what is generally accepted in these circumstances. If he fears that fasting might be harmful to him, it is permissible to break his fast. And if his illness continues until the next Ramadhan, Qadha is not obligatory but he should give 750 grams of food (wheat, flour or bread or any kind of food) for each day to poor Shiites. If he recovers within the same year, only Qadha is obligatory on him and he will not have to pay kaffara.

As for a patient whose health is not affected by fasting, he must fast and his fasting is in order.

May Allah(swt) grant you success


Syed Haider