Prayer: Is Prayer Invalid If Najāsah Is Discovered Before or During the Prayer?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Is Prayer Invalid If Najāsah Is Discovered Before or During the Prayer?

English:

Question #428:

If someone is sure that there is no najis substance on his clothes or body and performs his prayer but realises afterwards that his body or clothes were najis; is the prayer he performed invalid? What will be the ruling if it becomes najis during the prayer?

Answer #428:

If someone is not aware at all that his body or clothes are najis and comes to know it only after the end of the prayer, it is valid, and it is not obligatory for them to repeat, or perform the qaḍā’ of that prayer. But, if it becomes najis during the prayer¹, it will be obligatory for them to remove the najāsah from their body or take off the najis clothing during the prayer — provided that they can do so without committing anything that contradicts the prayer — and complete their prayer. If they are unable to remove the najāsah while preserving the status of the prayer and there is enough time, it is obligatory for them to break the prayer and resume it after the removal of the najāsah.

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