נסר שהוא נתון על פי תנור חדש – that was not heated/kindled, that is not susceptible to receive ritual defilement, And we are speaking of an oven that stands in the courtyard or in the garden.

בפותח טפח – that the board is wide and extends outward from the oven a handbreadth around it from all its sides.

שעל גביו – on top of the board.

טהורים – for since the oven is pure, the vessels are protected, and similarly, if defilement is on top of the board and the vessels are underneath the board.

ובישן – as for example, that the oven was heated that is susceptible to receive ritual defilement.

טמא – the oven [is impure]. The board does not protect it. And all the more so, thew vessels that are under the board and that are on the board. And the reason of our Mishnah is that vessels become tents to defile but not to purify, therefore, a new [oven] which is not a vessel protects. An old [oven] which is a vessel does not protect.

ור' יוחנן בן נורי – specifically with an oven. But regarding vessels, he (i.e., Rabbi Yohanan ben Nuri) agrees that they are impure. And this is brought in the Tosefta (Tractate Ohalot, Chapter 13, Halakha 1).

נתון על פי שני תנורים – the head of the board on this oven and the other head of the board on the other oven and there is defilement between the two ovens, and we are speaking of old ovens. But the Rabbis go according to their reasoning and Rabbi Yohanan ben Nuri according to his reasoning. But the Halakha is not according to Rabbi Yohanan ben Nuri.

סרידא (coarse web or matting/stuffed matting used for stoppers of stoves) – like a kind of earthenware lattice-work/grid/mesh. It is the Aramaic translation of (Exodus 27:4, 38:4): “a grating of meshwork”/מעשה רשת – making mesh. And it is smooth and the leftover is outside of the oven a handbreadth from every side.

הכל טמא – vessels that are underneath it and that are above it, except from vessels that are on top of it opposite the airspace of the oven, because the tent brings defilement underneath it all around the oven and returns and bursts forth above. But even the defilement that is above bursts forth downwards and it is stretched around and returns and bursts forth above.

כנגד אוירו של תנור טהור – for it is surrounded by an airtight seal and interrupts it.

כנגדו עד הרקיע טמא – but what is underneath it is ritually pure.

נסר – [a board] which is long and narrow, and when it is placed on the mouth of the oven, it extends outward a handbreadth from the east and a handbreadth from the west but from the south and the north it does not extend outward.

טומאה בצד זה – underneath the board in the east or in the west.

כלים שבצד השני טהורים – that there Is no room for the defilement to pass, for the board doesn’t have leftover from the north or from the south.

ורבי יוסי מטמא – for he holds that the oven does not form a partition. But the Halakha is not according to Rabbi Yossi.

הבטח (a hollow column-like receptacle of rain water near the house; Maimonides holds that it is a projection in front of the window to stand upon in climbing) – There are books that have the reading of אבטח, and it is a building that is made similar to a bathtub in bathhouses that they place water in them for washing, and a board is placed upon it for the ceiling and board has leftover from two sides. But if there is defilement from this side, it doesn’t go out to the other side because the hollow column-like receptacle of rain water near the house interposes.

היה בו זיז (if it had an attachment – a projection from the door frame serving as a shed over the entrance, or a molding projecting from a window-sill as a bracket) – there was a beam going out above from the hollow column-like receptacle of rain water from the east to the west.

רואין את הבטח כיאלו אינו – for even though the hollow column-like receptacle of rain water near the house interposes with the board, in connection with the attachment/a projection from the door frame serving as a shed over the entrance – it does not interpose. And the Halakha is according to Rabbi Yehoshua.

סנדל של עריסה – the cradle of a baby that regularly is placed underneath its feet like a metal sandal for beauty or in order that it not rot/decay.

שפחתו בתוך הבית (that was broken through within the house) – that the roof of the upper chamber was broken through/reduced that the crib is placed upon it and the sandal of the cradle is seen within the house from the reduction that is in the roof, and defilement is within the house.

אם יש – in the place of the breach.

פותח טפח – it brings the defilement from the house to the upper chamber.

ואם לאו – that there isn’t there an opening of a handbreadth.

מונין בו כדברך שמונין במת – that the sandal and the crib are impure with a ritual impurity for seven days like the law concerning impure vessels that come in contact with vessels, but the baby is impure with ritual impurity until the evening, as it is taught in the Mishnah in the first chapter (Mishnah 2).

מעזיבה (concrete of stone chippings, clay, used for paving floors, pavement covering the ceiling of the lower story and serving as flooring of the upper story) – plaster and stones that they regularly place on top of the beams.

תחתיה טמא – and that which is on top of it is ritually pure, for the beam interposes. And these words [apply] when there the beams have an opening of a handbreadth when they are a handbreadth wide, but if they are not a handbreadth wide, they do not bring the defilement and they do not interpose, and it is like one that they don’t have it. And it is found that defilement is like it stands in the airspace.

ביניהן טמא – and that underneath the lower [beam] and on top of the upper [beam] they are pure, for both of them interpose.

כנגדו עד הרקיע טמא – for underneath all of them (i.e., the beams) it is ritually pure.

כבין התחתונות – opposite the airspace of the lower ones. And their widths is like the measure of the airspace that is between them, for if they should raise up the lower [beams] or lower he upper [beams], it is found that everything is concealed.

תחת כולן טמא – it is as if the ceiling was level, and on top of them is pure.

תחת כולה – all the vessels that are under it (i.e., the beam) are impure, for it brings defilement to everything. But on top of it is pure, for it interposes in the face of the defilement.

ואם לאו – that it (i.e., the beam) is not a handbreadth wide.

בוקעת ועולה – for if defilement is underneath it, the vessels that are on top of it opposite the defilement are impure.

בוקעת ויורדת – that if defilement is on top of it, the vessels that are under it opposite the defilement are impure.

היקפה שלשה טפחים – that all that there is in its width a handbreadth, there is in its circumference three handbreadths, for such we found in [The Second Book of] Chronicles [Chapter 4, Verse 2]: “He made the sea of cast metal ten cubits across from brim to brim, perfectly round; it was five cubits high, and its circumference thirty cubits.”

עמוד שהוא מוטל לאויר (a column which lay [on the ground] in the open air) – a round column that is cast on the ground and lies on its circle. In the open air, as for example, in the courtyard or in the garden. And from the middle of the circle it begins to overshadow on the ground and gradually becomes shortened from here and there until its bottom is next to/adjacent to the ground, and regarding the mater of bringing defilement we require a handbreadth by a handbreadth at the height of a handbreadth squared, but if there is here to the side that is outward from underneath the height of a handbreadth even though that which is below is adjacent/next to in the place of his lying down on the ground, the height is not a handbreadth completely which defiles in the tent, and it is judged like the sloping of tents. But the round pillar which has in its circumference twenty four handbreadths is found that its width is eight handbreadths, that all that has in its width a handbreadth there is in its circumference twenty-four handbreadths, and it is found that a person is able to make a quadrangle underneath his partition/wall that is from here to and from there a handbreadth by a handbreadth. At the height of a handbreadth, there is here a square of eight [handbreadths] by eight [handbreadths] if you make within it a circle of eight [handbreadths], it is found that the corners overlap eight-fifths [handbreadth] for each and every corner, for each cubit in a square is a cubit and two-fifths crosswise/in a diagonal line, it is found that the diagonal line is in excess of the width by sixteen-fifths, take from them half for this corner and half for that corner, there is for each one eight-fifths, and if you come to make in the corner that is outside of the circle a square of a handbreadth by a handbreadth, it is found that his diagonal line/crosswise is in excess over its width by two-fifths, and it is found that the measure of the diagonal line is seven-fifths, there would not remain for us more than the need other than one-fifth, but because the one-fifth is not exact. And furthermore, that each cubit in a square is a cubit and two-fifths in a diagonal line – which is not completely lying exactly in line, for it is missing a bit from it.

מודבק לאסקופה – that the threshold is wide and defilement is attached on the threshold from the arched gateway with posts and outward, Rabbi Eliezer holds that all of the threshold is like the house, therefore, it defiles the house. But Rabbi Yehoshua holds from he arched gateway with posts and outward, the threshold is not considered like the house. And the Halakha is according to Rabbi Yehoshua.

ידון מחצה למחצה – from half of the threshold and inward is like inside, and the house is impure, from half and outward is like outside and the house is pure, half and half, the house is impure.

מודבק למשקוף – underneath the lintel from the arched gateway and posts outward.

הבית טמא – that even from the arched gateway and posts and outward it is considered a house.

ור' יוסי מטהר – for it is not considered to him like a house. But the Halakha is not according to Rabbi Yossi.

רבי אליעזר מטמא – that he considers all of the threshold like a house.

מטפח ולמטן טהור – for it is similar to the ground.

מטפח ולמעלן טמא – even though it is attached to the threshold, Rabbi Yehoshua purifies the house, here when then defilement is in the house, Rabbi Yehoshua declares impure the threshold from a handbreadth and higher, because it is the manner of defilement to leave and not to enter. And the Halakha is according to Rabbi Yehoshua.