She works as a nurse on the maternity ward and she has some questions about purification and prayer

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How should he pray if he can't find anything to wear except a garment on which there is some impurity (najaasah)?
Delaying prayer until night-time because of work

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How should he pray if he can't find anything to wear except a garment on which there is some impurity (najaasah)?
Delaying prayer until night-time because of work

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