Ruling on wearing shoes if they are made of pig skin, and ruling on praying in them

He is suffering from waswas with regard to cleaning himself (istinja) after urinating, which is compelling him to shower straight after urinating

Are dogs and pigs najis (impure)?

Ruling on one who prays on a carpet, the edges of which reach the bathroom

Is Semen impure?

Is a Boar Bristle Hairbrush Allowed in Islam?

Can he wipe over his khufoof when removing madhiy (prostatic fluid)?

Cleaning oneself with toilet paper to remove madhiy; is it necessary to clean oneself (istinja’) with water first in order for wudu to be valid?

Ruling on eating from the university canteen if the plates are not washed seven times after having been licked by dogs

Ruling on touching the penis with the right hand