A person has been affected with tuberculosis since three years. Two Muslim doctors have decided that he should not fast due to this disease. Is he allowed not to fast then?.
Praise be to Allaah.
As Muslim doctors have determined that he will be harmed by
fasting, then it is permissible for him not to fast, but he should make up
the missed fasts after he recovers, in sha Allaah.
End quote.
Fataawa al-Shaykh Muhammad ibn Ibraaheem
(may Allaah have mercy on him) (4/181, 182).
But if he cannot fast after that, then he must feed one poor
person for each day.