Ruling 174 — Purification (Ṭahārah)

If ground paved with stone or brick, or hard ground that does not absorb water, becomes impure, it can be purified with qalīl water; however, one must pour water over it to the extent that it flows. If the water poured over it does not disappear down holes in the ground but instead gathers somewhere, then to purify that place, the gathered water must be removed with a cloth or a utensil.