Purity: Ruling on Well Water’s Purity Upon Contact with Impurities

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 42

With regard to well water that gushes from the ground – even if its quantity is less than kurr – in the event that an impurity comes into contact with it, it is pure as long as its colour, smell, or taste does not change.

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