Answered by Shaykh Sohail Hanif, SunniPath Academy Teacher
Please can you tell me if the prayer is valid, if a person performs sajda sahw, but he didn’t need to perform it? Also, what if he didn’t know?
Assalamu alaykum
If one performs a forgetfulness prostration when it is not required, one has added to the prayer something that was not meant to be there. In this case it will not invalidate the prayer but rather is prohibitively disliked and the prayer would have to be repeated. This would apply whether one knows the ruling or not. This is because we are responsible for learning the injunctions of the sacred law and may not therefore take ignorance as an excuse for falling short in our duties.
Sohail Hanif
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