Is it permissible for the patient who lives in the fifth floor and suffers from a heart disease not to attend congregational Salah?

Q 3: My apartment is on the fifth floor and I suffer from a chronic heart condition. (Part No. 7; Page No. 14) I have been subject to medical treatment for seven years now. Sometimes, I hear the Adhan (call to Prayer) and I feel able to descend the stairs and pray in the Masjid (mosque). Other times, going up and down the stairs wears my heart out and affects my health, in general. Is performing Salah (Prayer) at home whenever I find myself unable to perform it in the Masjid permissible or not? I ask you this, knowing that the Messenger of Allah, (peace be upon him) did not give a Rukhsah (concession) to a blind man, who lived beside the Masjid, to perform Salah at home. Thus, I ask, if I am seriously ill, am I permitted to perform Salah at home or must I go up and down the five floors at the time of every Salah? Kindly note that, while I am here, I never miss any Salah in the Masjid, as I live in a one-floor-apartment, near the Masjid. Answer me, may Allah benefit you as you benefit others and guide them to the right path!

A: If, as you mentioned, you live on the fifth floor and suffer from a heart condition, and going up and down the stairs negatively affects your health, then you may perform Salah at home whenever you feel unable to descend the stairs to perform it in the Masjid.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.