Q. Is Salaah – prayer – with urine on my clothing valid?

A. Any impurity that comes upon a person or on the clothes that a person is wearing should be immediately removed. However, if a person read a given salah  with  impurity (be it blood, urine, puss, etc) on the body or clothes, then one has to see if the impurity falls into the category of Major or minor impurity (Najasat-e-ghaliza or  Najasat-e-Khafefa).

In your case, since it is urine, it falls into the category of what is called Major impurity.  Thus if the clothing article or body part is soiled more than the size of a dirham, then the Salah must to be repeated. However, if the impurity did not exceed the size of a dirham, then the salah would be viewed as valid. (A dirham is equivalent to the size of the inside of an individual’s palm, al little larger than the size of a dollar coin.)

By contrast, had the impurity fallen into the category of what is termed as minor impurity, and does not exceed a surface of more than a quarter of a limb,  (if impurity s on the body,) or quarter or more of a given garment,(if it is upon a person’s sleeves, etc.) than the salah would be most valid, Insha-Allah.  Minor impurity is defined as droppings of those animals which can be consumed, example, sheep, goat, camel, chicken, etc.

Allah certainly knows best.