L'interdiction du kilayim [produit du croisement ou du travail interdit de certains animaux entre eux, de la plantation de certaines plantes ou de l'entrelacement de certaines fibres] ne s'applique qu'à la laine et au lin [de mouton], et seuls la laine et le lin peuvent devenir impurs par négaim [ taches malades sur la peau, les vêtements ou les maisons qui créent des impuretés]. Les prêtres, pendant le service dans le Temple, ne portent que des vêtements de laine et de lin. La laine de chameau et la laine de mouton qui ont été mélangées ensemble, si la majorité [de la laine] est de chameau, il est permis [de les mélanger avec du lin, puisque la minorité est annulée par la majorité]. Si la majorité provient des moutons, il est interdit [de les mélanger avec du linge]. S'ils sont moitié-moitié [montants égaux], ils sont interdits. La même [règle] s'applique au chanvre et au lin qui ont été mélangés ensemble.
English Explanation of Mishnah Kilayim
Introduction
The final chapter of Kilayim deals with kilayim of clothes, or shatnez, as it is called by both Leviticus and Deuteronomy.
Our mishnah also mentions several other halakhot which apply only to wool or linen, the two materials subject to the laws of kilayim.
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English Explanation of Mishnah Kilayim
Nothing is forbidden on account of kilayim except [a mixture of] wool and linen. Deuteronomy 22:11 defines “shatnez” as being wool and linen. Hence only a mixture of wool and linen is prohibited. Wool and cotton, for instance, is not prohibited.
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English Explanation of Mishnah Kilayim
No [clothing material] is subject to uncleanness by scale disease except wool or linen. The only types of clothes subject to impurity through “scale disease” (sometimes called leprosy) are wool and linen (see Leviticus 13:47).
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English Explanation of Mishnah Kilayim
Priests do not wear any materials to serve in the Temple except for wool and linen. The priestly clothing was made only of linen and wool (see Exodus 39:27-29). It is interesting that while such a mixture was generally prohibited, while the priests were serving in the Temple, this is precisely the clothing that they would wear.
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English Explanation of Mishnah Kilayim
Camel’s wool with sheep’s wool, that have been mixed together: if the greater part is camel’s wool, it is permitted [to mix it with linen], but if the greater part is sheep’s wool, it is forbidden; if it is half and half, it is forbidden. Camel’s wool is not prohibited in kilayim, only sheep’s wool is prohibited. Therefore, if camel’s wool is mixed up with sheep’s wool such that it becomes impossible to separate them, it is permitted to use the mixture with linen if the quantity of camel’s wools is more than the quantity of sheep’s wool. If the quantity of sheep’s wool is greater than it is prohibited. If they are equal the mixture is still prohibited, because we always tend to be strict in cases of doubt when the prohibition is from the Torah, as is the prohibition of kilayim.
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English Explanation of Mishnah Kilayim
The same applies to hemp and linen mixed together. Hemp can be mixed with wool, whereas linen cannot. So if hemp and linen are mixed together, the mixture can be mixed with wool if the hemp is the majority, but if the linen is the majority or equal to the hemp, it is forbidden.
