[Si un zav ] golpeó una puerta, un cerrojo, una cerradura, un remo, un marco de piedra de molino, un árbol débil, una rama débil de un árbol fuerte, en una escalera egipcia que no estaba asegurada [a un pared] con un clavo, [o se sentaron juntos] en un puente, una viga, en una puerta que no estaba hecha [asegurada] con arcilla, son inmundos. [Si un zav golpeó] en un cofre, una caja, un armario no están limpios. El rabino Nechemia y el rabino Shimon los limpian [los tres últimos casos].
Bartenura on Mishnah Zavim
הנגר (door-bolt) – a peg that is wedged in behind the door in the incision that is in the lintel/lower door-sill.
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English Explanation of Mishnah Zavim
If he knocked against a door, doorbolt, lock, oar, mill basket, or against a weak tree, or weak branch of a strong tree, or against an Egyptian ladder unsecured by nails, or against a bridge, beam or door, not made secure with clay, they become unclean. In all of these cases the zav knocks against something and thereby causes an object to fall off of it. Since these things are loose or weak, we can assume that the zav caused the object to fall and therefore the object becomes unclean. Many of these items were mentioned in mishnah 3:1 (and their opposites in 3:3). [Note that door seems to have crept into this mishnah twice. Clearly a mistake it probably belongs in the first half and not the second].
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Bartenura on Mishnah Zavim
מנעול – that they close the door with it (i.e., a lock).
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English Explanation of Mishnah Zavim
[If he knocked] against a chest, box or cupboard, they become unclean. Rabbi Nehemiah and Rabbi Shimon declare them clean in these cases. According to the first opinion these objects are not so sturdy and therefore it is likely that the zav caused them to fall. Rabbi Nehemiah and Rabbi Shimon believe that they are sturdy and therefore if something falls off of them, it probably was not due to the zav.
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Bartenura on Mishnah Zavim
משוט (oar) – that they direct/steer the ship. And it is a Scriptural language (Ezekiel 27:29): “all the pilots of the sea [shall come down from their ships and stand on the ground].”
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Bartenura on Mishnah Zavim
קלת (the framework under the millstone to receive the flour-dust) – a wooden round mould that surrounds the lower millstone to receive the flour that is ground that it should not fall to the ground, and it is movable.
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Bartenura on Mishnah Zavim
ועל סוכה שכוחה רע – and it stands in a tree which is very strong.
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Bartenura on Mishnah Zavim
טמאין – for all of these are not very strong, and the power/strength of the knocking of the person with gonorrhea/the Zav is considered shaking/movement.
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Bartenura on Mishnah Zavim
מטהרין באלו – it is referring to the chest, ark and turret. For this reason, the first Tanna/teaches teaches them separately. But the Halakha is not according to either Rabbi Nehemiah or Rabbi Shimon.
