My prayer dress has a big hand opening in the front..I try to hold it together while praying so it covers my hand while praying..while ruku however it got back to its usual loose and large state but my hands were faced downwards..since I was in this position when my hand got one wd be able to see my hands if they faced me or walked passed the prayer valid by the uncovering

The prayer is not valid in such a dress where your arm is exposed.

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