וְאִ֡ם שָׁכֹב֩ יִשְׁכַּ֨ב אִ֜ישׁ אֹתָ֗הּ וּתְהִ֤י נִדָּתָהּ֙ עָלָ֔יו וְטָמֵ֖א שִׁבְעַ֣ת יָמִ֑ים וְכָל־הַמִּשְׁכָּ֛ב אֲשֶׁר־יִשְׁכַּ֥ב עָלָ֖יו יִטְמָֽא׃ (פ)
A gdyby obcował z nią mąż, i wydzielina jej będzie na nim, nieczystym będzie przez siedm dni, a każde łoże, na którémby leżał, nieczystém będzie.
Mishnah Kelim
Above them is one who had intercourse with a menstruant, for he defiles the bottom [bedding] upon which he lies as he does the top [bedding]. Above them is the issue of a zav, his spit, his semen and his urine, and the blood of a menstruant, for they convey impurity both by contact and by carrying. Above them is an object on which one can ride, for it conveys impurity even when it lies under a heavy stone. Above the object on which one can ride is that on which one can lie, for contact is the same as its carrying. Above the object on which one can lie is the zav, for a zav conveys impurity to the object on which he lies, while the object on which he lies cannot convey the same impurity to that upon which it lies.
Mishnah Kelim
Above the zav is the zavah, for she conveys impurity to the man who has intercourse with her. Above the zavah is the metzora, for he conveys impurity by entering into a house. Above the metzora is a [human] bone the size of a barley grain, for it conveys impurity for seven days. More strict than all these is a corpse, for it conveys impurity by ohel (tent) whereby all the others convey no impurity.
Mishnah Niddah
If [blood] is found on his rag they are both unclean and they are liable to bring a sacrifice. If any blood is found on her rag immediately after their intercourse, they are both unclean and must bring a sacrifice. If [blood] is found on her rag after a time, they are unclean due to doubt but they are exempt from a sacrifice.