What is the ruling on the prayer whose time has entered while a kidney patient is in the dialysis room?

Question:
He says: Honorable Shaykh, may Allah grant you success. A questioner says: My father’s prayer time enters while he is still in the hospital, in the kidney dialysis room. What should he do regarding the prayer whose time has entered for him? And what is the guidance, may Allah preserve you, for him, since he is very concerned about the matter of prayer?

Answer:
May Allah reward him with good, help him, and reward him. If he is to enter for dialysis after the time of Dhuhr has entered, at the beginning of the time of Dhuhr, then he prays Dhuhr and Asr together as a combined prayer in advance (jam' taqdim), and then enters for dialysis. Or if he is to enter for dialysis after the time of Maghrib has entered, then he prays Maghrib and combines Isha with it as a combined prayer in advance (jam' taqdim), and then enters for dialysis. As for if it is the opposite, and he enters for dialysis before the time of the first prayer has entered, before the time of the first prayer has entered, then he delays the first prayer and combines it with the second in the time of the second as a combined prayer in delay (jam' ta'khir), yes.