The prayer is valid.

After i prayed maghrib salah behind an imam. I realized a bit of my back showed when my scarf went up. I quickly covered after salah was done and i realized this after i finished salah. Is my prayer valid? Should i repeat it?

Prayer | December 8, 2015 4:04 am
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The hadith stressing on the rewards of qabliya before fajr is well known..However is someone failed to wake up for fajr and compensates the salah later on,if he prays the sunna,does it have the same rewards as praying it in fajr time?
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Continuation of last topic: “raising hands after Salaah” You said raising hands is bidaah. So, do you suggest that I should keep my hands on my knees while doing the Zikr?