What is the ruling on urine splashback getting on the foot during istinja (washing after urinating)? And does one have to repeat wudu if they walk with a wet foot on a carpet after leaving a bathroom with an impure floor? And how is impurity removed from the body during ghusl (ritual bath)? And is wudu obligatory during it? And is it obligatory to purify the impure bathroom floor before ghusl? And what is the ruling on water splashing back from an impure floor onto the feet during showering?

First: The default state of the bathroom floor and slippers is purity. A ruling of impurity is not made except with absolute certainty.

Second: The remnants of water used for istinja (cleaning after relieving oneself) are pure as long as they have not changed due to impurity.

Third: The earth and whatever is connected to it, such as buildings and trees, become pure through dryness.

Fourth: If you doubt the impurity of your body or clothing, act upon the default state, which is purity.

Fifth: When performing ghusl (ritual bath) to remove impurity, begin by removing the impurity, then perform ghusl by spreading water over the entire body. Overriding probability is sufficient in this regard.

Sixth: Strive against obsessive thoughts (waswas) in all aspects of religion.