All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
As for distinguishing between Mathy and normal discharge, it is an easy matter. Whatever is released upon arousal without sexual pleasure during the discharge, it is Mathy, and whatever is released without any cause, it is normal vaginal wetness. When in doubt, the opinion that we adopt is that a woman has the choice to apply either ruling to the secretion under doubt.
To purify clothes touched by Mathy, it is enough to sprinkle water over the spot that has become impure. It is not a condition to soak the spot with water or to wring it after sprinkling water on it. If a woman is certain that her clothes have become impure but she does not know the exact spot of impurity, then she should sprinkle water over the part of the clothes that would make her certain that she has purified the probable spot of impurity.
Mathy is released from the place where the woman gives birth (womb) and not from the place where she urinates (urethra). How to distinguish this from ordinary wetness is a matter which we have already clarified to you. So we warn you against having obsessive whispers, as getting carried away with them leads to great evil.
Allaah Knows best.