Purity: Is the Sun a Purifier in Islamic Law? What Are Its Conditions?

Practical Laws of Islam as per the teachings of Imam Khamenei

Purity: Is the Sun a Purifier in Islamic Law? What Are Its Conditions?

English:

Question #81

Is the sun considered one of the purifying agents? If so, what are the conditions for it to purify?

Answer #81

The sun purifies the ground and all immovable objects such as trees, plants, buildings, and/or whatever is fixed inside of them — such as timbers, doors and so forth. These things are purified by sunshine provided that at first the inherently najis substance is removed and then they are wet and dried out just by sunshine while nothing such as clouds or a curtain prevents direct sunshine on it.

- Imam Khamenei, Practical Laws of Islam, Rules Concerning the Different Types of Water