What should someone do who wets the bed at night and finds their clothes damp for prayer; should they perform ghusl?

It is obligatory to remove impurity from the body, clothes, and place for prayer, because purity is a condition for the validity of prayer according to the majority of scholars. They cite the Almighty's saying: "And purify your garments," and prophetic hadiths as evidence. If the location of the impurity is known, it must be washed; if it is ambiguous, the entire garment should be washed.