If one becomes ritually impure (junub) while traveling and only has snow, it is permissible to perform ghusl with it, as well as ablution by rubbing it on the skin. It is also permissible for a person in a state of major impurity to scoop water from a container with his hand. If he performs ghusl and water splashes from the ground into a container, or runs from his body into a container, there is no harm in it. It is also permissible for a man and woman to perform ghusl from the same container, but She should use his leftover water, and he should not use hers. The most significant impurity that may fall into a well is a human who dies in it, requiring seventy buckets of water to be drawn. The smallest is a small bird, requiring one bucket. For other cases, the amount depends on the item: If a mouse falls in and does not decay, draw one bucket; if decayed, draw seven (and discard). If a donkey falls in, draw a kurr (large quantity) of water (and discard). If a dog falls in, draw thirty to forty buckets (and discard). If a cat falls in, draw seven buckets (and discard). If a chicken or pigeon falls in, draw seven buckets (and discard). If a camel, cow, or wine is poured in, the entire well’s water must be drawn out (and discard). If a few drops of blood fall in, a few buckets are sufficient (and discard). If a man urinates in the well, forty buckets should be drawn (and discard). If a child who has eaten solid food urinates, draw three buckets; if an infant, draw one bucket (and discard). If a basket of fresh or dry feces or manure falls in, there is no harm in using the well for ablution, provided no contents spilled into the water. If feces fall in directly, draw ten buckets ; if it dissolves, draw forty to fifty buckets needs to be drawn from it. If a well is near a cesspit, the distance should be five arm-lengths if the ground is solid, or seven if it is soft.