Sorry for prolonging the discussion. Unexpectedly I have recently come across a hadith in Sahih Bukhari regarding the continuous impurity. ‘Aa’ishah said: Faatimah bint Abi Hubaysh came to the Prophet (peace and blessings of Allaah be upon him) and said: “O Messenger of Allaah, I am a woman who suffers from constant non-menstrual bleeding (istihaadah), and I never become pure. Should I give up prayer?” The Messenger of Allaah (peace and blessings of Allaah be upon him) said, “No, rather that is from a vein, and it is not menstruation. When your regular time of menstruation comes, then stop praying, and when that time is over, then wash the blood off yourself and pray, then do wudoo’ for every prayer until that time comes.” The prophet encouraged the woman to renew her ablution for every prayer without cleaning her organ; this is how I understood it. If a person with spoiled clothes washes his organ and then put on the same clothes, the very object of getting rid of impurity is just not achieved. When the same dirty clothe (underwear) touches his organ, he will become impure once again. May be because of this reason the prophet (pbuh) did not oblige the woman to do so. My questions: Does ablution includes cleaning of sexual organ (istangah)? If he has to clean the organ; do the person wearing some kind of covering has to clean the covering also before wearing it? As it is not necessary to clean the clothes before every Salah as you mentioned earlier. It must be very inconvenient and uncomfortable for that person.
The referred directive of the Prophet (pbuh) inherently entails the point that the subject should clean any contamination off her clothes, except where it becomes extremely inconvenient to do so, perform ablution and offer her prayers.