Hawzah News Agency – If rain falls once on an impure object that does not contain an intrinsic impurity, the area that comes into contact with the rain becomes pure. However, if a person’s body or some clothing has become impure by urine, then based on obligatory precaution rain must fall on it twice for it to become pure. With carpets, clothing, and similar things, wringing out the rainwater is not necessary. Of course, a few drops of rain fall will not suffice; rather, it must be such that one can say it is raining.

If rain falls on an intrinsic impurity and the water splashes, in the event that none of the intrinsic impurity is included in the splashed water and the water does not acquire the smell, color, or taste of the impurity, the water is pure. Therefore, if rain falls on blood and the water splashes, in the event that particles of blood are present in the water or it acquires the smell, color, or taste of blood, it is impure.

If there is an intrinsic impurity on the roof of a building, then as long as it keeps raining on the roof, any water that comes into contact with the impure object and then falls down from the roof or gutter is pure. However, after it stops raining, if the water that falls from the roof or gutter is known to have made contact with the impure object, then that water is impure.

Source: https://www.sistani.org/