What is the ruling on one who suffers from obsessive doubts regarding purity and feels drops of urine exiting after performing ablution and istinja (cleaning oneself after urinating/defecating)? Should he follow the advice of Sheikh Bin Baz to sprinkle water on his underwear without paying attention to what has come out, and should this procedure be repeated with every prayer? What should he do if he feels something exiting during prayer? Does impurity transfer from inner to outer clothing? And what should he do if he finds moisture upon waking up?

The treatment for the obsessive thoughts about urine drops exiting is to ignore them and pay no attention to them. If you doubt that anything has exited, do not mind it, and build upon the certain original state, which is that nothing has exited, until you achieve absolute certainty of its exit. You can sprinkle your clothes with water. What you perceive as a smell is often an illusion. If you find moisture and do not know its nature (whether it is mani or madhi), then choose and assign it a single ruling. If you are certain that urine has exited, then you must perform istinja' and wash only the area of impurity. The ruling of impurity does not transfer from inner to outer clothing merely by doubt. In general, abandon doubts and do not pay attention to them, because indulging in them leads to great evil.