good muslims dont stand and pee they do istinja, a photo by firoze shakir photographerno1 on Flickr.
Is-tin-ja means to make one self clean after urinating or deficating with water. We have to be clean in order to even make the ritual washing called wudu to be able to pray. It is perferable to wash with water, and even modern medicine has said it is more beneficial to the health to do so.
Now Islam came to a people that live in the desert, so water was rare at times, and if water is scare there might not be even trees to use the leaves of, but there might be stones they could use. Estijmar is the cleaning when you don't have water available after urinating or deficating. This is not an option most people would like to exercise but if you are in need of cleaning and there is no water or paper around a rock can be use.
