Question
Impure and pure water from a woman. Ibn Hajar said in his explanation: It is the white water that is uncertain between pre-seminal fluid and sweat, which comes from the inside of the vagina and does not require washing, unlike what comes out that must be washed, for it is certainly pure. What comes from inside the vagina is certainly impure, like everything that comes from the inside, such as water that comes out with a child or its like (Fatwas of Shami on Purity / Chapter on Impurities 51501 Zakariya). So how do we distinguish pure water from impure water, as most of it has no color?
Answer
I say, and with God's success: Usually, a woman has fluid that comes out from the private parts, which has a usual color or no color at all. If the discharge is as usual, it is pure; if its color changes to something other than what is usual, it is not pure, it invalidates the ablution, and it makes the clothes impure. And God knows best.