What is the ruling on one who delays the prayer from its time for an excuse?

Question:
What is the ruling on one who delays the prayer from its time for an excuse? Is it permissible to pray it after the following prayer, or should he delay it until the next day to pray it with its similar counterpart? Please inform us.

Answer:
It is obligatory not to delay the prayer from its time; rather, it must be prayed in its time, even if combined with the prayer to which it is combined: such as Maghrib with 'Isha', and Zuhr with 'Asr. If he is sick, he combines it with its counterpart: Zuhr with 'Asr, and Maghrib with 'Isha. Likewise, if he is traveling, he combines them. So the sick person and the traveler combine between Zuhr and 'Asr, and between Maghrib and 'Isha, and do not delay it to another time. So one does not delay Maghrib and 'Isha until after the middle of the night, nor does one delay Zuhr and 'Asr until after the sun turns yellow, or after the sun sets. No, rather, one must hasten with the time.
So if he delays it—whether out of forgetfulness or due to sleep—he must hasten to pray it as soon as he becomes aware, wakes up, or remembers. He must hasten with it and not delay it until the other prayer. No, rather, he must hasten with it, as the Prophet (peace and blessings be upon him) said: ... in the night and slept at the beginning of the night missing 'Isha, he hastened to pray it and did not delay it. Likewise, regarding Zuhr and 'Asr, if he slept and did not wake up until after the sun had turned yellow, he must hasten to pray it immediately, praying Zuhr and 'Asr. And if he did not wake up until after Maghrib, he must hasten to pray it and pray them before Maghrib, praying Zuhr and 'Asr, then praying Maghrib.
The point is that he must hasten to pray it as soon as he remembers, if he was forgetful, or as soon as the excuse is removed, if he was sleeping when he woke up. As for the sick person, he must never delay it; he prays it in its time in his condition, even on his side. If he is unable to stand, he prays sitting. If he is unable to sit, he prays on his side. If he is unable to pray on his side, he prays lying on his back. He does not delay it; he prays it in its time, even if sitting, or on his side, or lying on his back, even if combined with its counterpart: Zuhr with 'Asr, and Maghrib with 'Isha. He does not delay it, even if he is sick. Allah says: [al-Taghabun: 16], and the Prophet (peace and blessings be upon him) says to the sick person: . All of this is from the facilitation of Allah (Glorified and Exalted is He) and His mercy and compassion for His servants.