Prayer: What Should One Do If They Remember Missing Ẓuhr During ʿAṣr Prayer?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: What Should One Do If They Remember Missing Ẓuhr During ʿAṣr Prayer?

English:

Question #362:

What is the duty of the person who becomes aware during the afternoon prayer that he had not performed noon prayer?

Answer #362:

If he starts saying the afternoon prayer thinking that he has said the noon prayer and during the prayer he notices his mistake, then if that happens at the time which is common between noon and afternoon prayers, he should, immediately, change his intention to the noon prayer and finish it and, then, perform the afternoon prayer. If that happens at the specific time of the noon prayer [which starts at noon time and last for a few minutes just enough for offering noon prayer, i.e. enough for four rak‘ahs for the resident person and two rak‘ahs for the traveling one], it will be an obligatory caution to change one’s intention to the noon prayer and complete it, but he should perform both the noon and afternoon prayers later in order. The same duty is applicable to maghrib and ‘ishā’ prayers, if one has not bowed to the rukū‘ of the foruth rak`ah; otherwise, they should, by obligatory caution, complete the prayer and, then, offer both the maghrib and ‘ishā’ prayers in order.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer