What to Do If You Remember Missed Prayer during the Current Prayer?
If you have prayed the current prayer, then you remember a missed prayer from the same day or a previous day, you should pray it, but do not repeat the current prayer. There is a difference of opinion among the jurists as to remembering a missed prayer during the current prayer. To be on the safe side, complete the current prayer, then make up the missed prayer, then repeat the current prayer.
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