Four questions organize this chapter: where the filth lies (body, cloth, footwear, smooth object or ground); what kind of filth it is (wet, dry, visible, invisible, severe or light); how it is removed; and whether prayer is valid due to true cleaning or an excused quantity.
These distinctions should not be collapsed into a single rule.
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Types of Impurity and Methods of Purification
Four questions organize this chapter: where the filth lies (body, cloth, footwear, smooth object or ground); what kind of filth it is (wet, dry, visible, invisible, severe or light); how it is removed; and whether prayer is valid due to true cleaning or an excused quantity.
These distinctions should not be collapsed into a single rule.