Methods of Purifying Visible and Invisible Impurities

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• How is a garment contaminated with a visible impurity (Najasah Mar'iyyah like blood) purified according to the correct opinion?
• If a stubborn blood stain remains on a garment after washing it thoroughly, the garment remains impure and cannot be worn for prayer.
• How is a garment contaminated with an invisible impurity (Najasah Ghayr Mar'iyyah like dry urine) purified?
• For non-squeezable items (like heavy leather or carpets), washing them three times and allowing them to drip-dry completely between each wash is legally sufficient.
• How are smooth, non-porous surfaces like steel swords or glass mirrors purified according to the text?
• Match the contaminated items with their correct legal purification methods:
• Rubbing leather socks (Khuffayn) against the ground is sufficient to purify them from liquid impurities like urine once dried.
• Classify the following scenarios into "Legally Pure" and "Legally Impure":