Making up the prayers of one who suffered a fainting spell or a concussion

Question:
Honorable Shaykh, a questioner says: A relative of mine was involved in an accident and suffered a concussion. He sometimes regains consciousness and sometimes loses it. He remained in this state for fifteen days without praying. Is his action valid, or is he required to make up the previous prayers?

Answer:
If he regains consciousness, he prays and does not delay the prayer. As for if he is struck by unconsciousness or a loss of mind for a short period and then his mind returns to him, he makes up the prayer if its time has passed. If the time is still remaining, he prays it, even if it is at the end of its time. The important point is that he does not let the prayer be lost except if the unconsciousness is extensive and lasts for a long period, in which case he is not required to make it up. However, if he regains consciousness, he prays in the future. Yes.