Transfer of Impurity Between Two Wet Bodies

Question

A question regarding the transfer of impurity when a wet couch comes into contact with something impure.

Answer 1

Peace be upon you.

According to Grand Ayatollah Khamenei and Grand Ayatollah Sistani:

Since the moisture in items like couches and mattresses does not constitute a single continuous body of water, only the area of contact is deemed impure. Additionally, the internal sponge does not become impure unless the moisture from the outer fabric is such that it penetrates inside.

For details on how to purify it, you can refer to Question 959.

May you be successful in all good.

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Source:

Grand Ayatollah Khamenei: Educational Message - How Impurities Affect Pure Objects

Grand Ayatollah Sistani: Minhaj al-Salihin - Part One - How Impurity Spreads to the Contact Area, Issue 410