Ruling 180
It is not necessary for the impure sole of one’s foot or shoe to be wet – it becomes pure by walking even if it is dry.
-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)
Purity: Purification of Sole of Foot or Shoe Without Wetness
Practical Laws of Islam as per the teachings of Ayatullah Sistani
