What is the ruling on clothes (trousers, shirt, jacket) and blankets that are used during masturbation or sleeping afterwards, knowing that neither semen nor prostatic fluid reaches them? Is it permissible to perform ghusl and pray in these clothes? Is the prayer valid in them?

The questioner must sincerely repent from the practice of masturbation, which is forbidden by Islamic law and harmful to the body. As for praying in the clothes he is wearing, there is no impediment to it if they have not been touched by an impurity such as madhi (pre-seminal fluid), for semen (mani) is pure according to the most preponderant opinion among scholars. The blanket he sleeps in is not ruled impure unless it is confirmed to have been touched by impurity, for the default state of things is purity. The prayer is considered valid if its conditions for validity are met. It is advised to stop obsessive thoughts and doubts and not to pay attention to them.