Purity: Purification of Impure Soil When Soaked by Rainwater

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 39

If impure soil is completely soaked by rainwater, it becomes pure on condition that it is not known whether the water has turned into mixed water by means of it coming into contact with the soil.

-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)