What is the Fiqh when water becomes najis (impure) and its conditions?
Answer:
(Fatwa: 1365/825/D=1432)
When water gets impure, it is not lawful to use it to clean any thing like clothes, body and other things, rather if the impure water gets to clothes or on any part of the body it shall make it impure.
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Darul Ifta,
Darul Uloom Deoband