Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 1 year ago

If you are sure that the impurity touched your clothes and made it Najis, but not sure about cleaning it, it is then Najis till you become sure that it have been cleaned.