When an Original Najis Substance Comes in to Contact with Flowing Water
Issue No.36- If najāsah reaches flowing water, only that part of the water will be najis whose smell, colour or taste changes on account of it, and the end which is connected to the spring will be ṭāhir even if it is less than kurr. However, the water on the other side of the canal will be najis if it is less than kurr, unless it is somehow connected through the unchanged portion of the water to the spring.
