The permissibility of wiping over prescribed footwear in travel and residence is affirmed subject to its legal conditions. Applying the ruling requires those conditions; knowing the term does not supply every practical detail.
The principles governing pilgrimage and jihad remain, yet a ruling's continuing validity differs from its being enacted or incumbent at every moment. Each activity is governed by its prescribed circumstances, conditions, and legal rules.
Distinguishing the ordinary linguistic use of a word from its technical legal sense is necessary for sound understanding.