Комментарий к Келим 27:4

מכולם – from any of them that he will trim (from the list provided in the first two Mishnayot of this chapter) one handbreadth by one handbreadth, it is appropriate to become defiled through sitting, For those measurements that are taught in the Mishnah above, the cloth is three [handbreadths] by three [handbreadths] square for uncleanness through treading and the sack is four [handbreadths] by four [handbreadths] square, etc., it would not other than with a piece of cloth or sack or hide or matting that was not cut or repaired for sitting. But trimming, that is cutting and repair from one of all of them one-handbreadth by one-handbreadth square in order to sit upon it, is impure through sitting, for occasionally one trims and makes patches from one of them for the pack-saddle/cushion of a donkey and sits upon it, but it will not be other than a handbreadth by a handbreadth.

Introduction Today's mishnah deals with a person who takes a piece of one of the materials mentioned in mishnah two and cuts off a swatch one handbreadth by one handbreadth in order to sit on it.

מכל מקום – and even from the sides. But Rabbi Shimon holds that from the sides is not appropriate for sitting. But the Halakha is not according to Rabbi Shimon [but according to the Sages – anyone who trims anywhere one-handbreadth by one-handbreadth, it is impure.].

If one cut off from any of these a piece one by one handbreadth it is susceptible to uncleanness. If one takes a piece of cloth, leather, sack-cloth or matting and makes a one square handbreadth swatch in order to sit upon it, it is susceptible to midras impurity. The sages provided minimum measures which a piece of cloth needs to be to be susceptible, but only in cases where the cloth was not meant for a seat.

[If one cut off a one by one handbreadth piece] from the bottom of a basket it is susceptible to uncleanness. The same rule applies if one cuts off a piece of material from the bottom of a basket.

If one cut off from the sides of the basket: Rabbi Shimon says that it is not susceptible to uncleanness, But the sages say one who cuts off a square handbreadth from anywhere, it is susceptible to uncleanness. There is a debate over whether a one square piece cut from the sides of the basket is susceptible. Rabbi Shimon holds that it is not. Albeck proposes that the sides of the basket are curved and not good for sitting, unless he reshapes the material. Therefore, simply cutting a piece from the sides to sit upon does not make it susceptible to uncleanness. The other sages disagree and say that even a piece cut from the side is susceptible.