According to the view of all the maraje’, in the case of kurr water coming in contact with a najis substance, or something that has become najis because of coming in contact with a najis substance, it won't become najis, given that the splashed water doesn’t contain any of the najis substance and it hasn’t taken on the color, smell or taste of the najis substance.
Therefore, the water that splashes when poured on a najis hand isn't najis if it doesn’t contain any najis substance or hasn’t taken on the color, smell or taste of it, and in the case of their being doubt whether the water carries najis particles or its smell, taste or color have changed or not, we don’t need to pay attention to the doubt and the water splashed is considered pak (not najis).
 Adopted from Tawdih al-Masaa’el (annotated), Imam Khomeini, vol. 1, pg. 39, issue 17, Al-Nashr al-Islami Institute, 1424 (AH).