Yadayim 2:2-3

Yadayim 2:2

Let’s say that a person poured the first water over his hands in one place and the second water over his hands in a different place. If a loaf of trumah fell into the first water, it’s rendered unclean; if into the second water, it remains clean. If he poured the first and the second waters in the same place and a loaf of trumah fell into the water, it’s rendered unclean. If he poured the first water over his hands and a splinter or a piece of gravel is found on his hands, his hands remain unclean because the second water only purifies the water on his hands. Rabban Shimon ben Gamliel says that if any water creature is found on one’s hands, they’re clean.

Yadayim 2:3

Hands are rendered unclean and purified up to the wrist, as follows: If one poured the first water over his hands as far as the wrist, then he poured the second water over his hands beyond the wrist and it flowed back to his hands, the hands are clean. If he poured both the first and the second waters over his hands beyond the wrist and they flowed back to his hands, his hands remain unclean. If he poured the first water over one hand, then he changed his mind and poured the second water over both hands, they are unclean. If he poured the first water over both hands and then changed his mind and poured the second water over one hand, that one hand is rendered clean. If he poured water over one hand and rubbed it on the other, it remains unclean; if he rubbed it on his head or on the wall, it is clean. Water may be poured over the hands of four or five people, either side by side or one above the other, so long as the hands are held loosely enough for the water to flow between them.