Should a traveler offer salutations at the end of two rak'ahs with the Imam, or complete four rak'ahs if he joins the congregation for the 'Isha prayer with the intention of performing the obligatory prayer in the mosque?
A traveler who is led in prayer by a resident must complete the prayer, and is not permitted to shorten it, due to the connection between the Imam's and the worshipper's prayer. He is obligated to follow the Imam in completing it.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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