Is purification valid using water that has mixed with a pure substance but is not boiled, such as saffron or chickpeas?
Chapter on what purification is achieved with regarding water
Al-Mughni
Book of Purification
Primary text
Regarding water mixed with a pure substance that alters one quality but abstinence was possible (like bean or chickpea water), the authoritative view holds that purification is invalid. This is because the water has lost its designation as absolute water and is analogous to boiled water. The scholars maintain that substances sprinkled onto water, like saffron or safflower, are treated the same as grains or fruits mixed in, and render the water unusable for purification.
Supporting text
The Shafi'i school differentiates: sprinkled substances are disallowed if they change the water, but if they do not dissolve and only cause change through proximity, they do not invalidate its purifying quality, similar to camphor. However, our scholars disagree regarding wood and twigs, viewing the change caused by leaching components as grounds for invalidation, akin to boiling.