זבים ג׳:ג׳ - ד׳:א׳

כל שאינו יכולה להמיט באדם (a ship which has no staggering effect on man) – it is large enough that when a person ascends on it, a person is not shaking/sinking.

הטהור מכה את הטמא – the person with gonorrhea/a Zav.

הרי הטמא נופל – for it is the manner of one who hits/strikes his fellow, if his fell was stretched, the person who struck/hit [his fellow] falls. And therefore, the person who strikes/hit [his fellow] (i.e., the person with gonorrhea is the one striking) is considered as one who is leaning on the ritually pure person in. And specifically, we are speaking of the matter of ritual impurity imparted through treading, for the ritually pure person who strikes/hits the impure person is pure from ritual impurity imparted through treading. But he is impure, for he is leaning on the person with gonorrhea/the Zav. And a ritually impure person who strikes the ritually pure person, his clothes are impure through treaiding, for it is as if the person with gonorrhea/the Zav is leaning upon him.

ר' יהושע אומר. כפיה שבראשה – it was taken for something remarkable, for even a veil that is on the head of a ritually pure woman is considered as if the menstruating woman sat upon it, even though she doesn’t sit upon it. And he (i.e., Rabbi Yehoshua) disputes with the anonymous Mishnah in the chapter above (Chapter 3, Mishnah 1; see also Chapter 2, Mishnah 7) which does not defile other than their clothing but not the cap that is on the women’s heads.

כלים שבראש הנס – this is also taken for something remarkable, for even though they are at the height of the top of the mast/flag that is not at the place of treading, nevertheless, they are impure through treading. But we are speaking about a small boat and a vacillating bed, when it is expounding upon the chapter that is above (Chapter 3, Mishnah 1), but rather that which is taught above does not defile vessels that are at the top of the mast. But the Halakha is not according to Rabbi Yehoshua.

בזמן שמשאן כבד טמאין מדרס – and even though they do not come in contact with the clothing, for it is considered as if it is leading on the clothing.

כסוסטרא -it is like a גזוזטרא/balcony, enclosure, like the planed board that protrudes outwards from the upper wall.

ונפל ככר של תרומה – [the loaf of priest’s due] that is upon the balcony/enclosure.

טהור – the loaf [is ritually pure] that fell on account of the knocking against of the person with gonorrhea is not considered to him as shaking/movement, because the strength of the balcony endures.