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Mishnayos Keilim Perek 18 Mishnah 7

כלים פרק י"ח משנה ז׳

7

If a [bed] leg that had contracted midras uncleanness was joined to a bed, all the bed contracts midras uncleanness. If it was subsequently taken off, it retains its midras uncleanness while the bed is unclean from contact with midras. If a bed leg that was subject to a seven-day uncleanness was joined to a bed, all the bed contracts seven-day uncleanness. If it was subsequently taken off it remains subject to seven-day uncleanness while the bed is only subject to evening-uncleanness. If a leg that was subject to evening uncleanness was joined to a bed, all the bed contracts evening uncleanness. If it was subsequently taken off it is still subject to evening uncleanness while the bed becomes clean. The same law applies also to the prong of a mattock.

כֶּרַע שֶׁהָיְתָה טְמֵאָה מִדְרָס, וְחִבְּרָהּ לַמִּטָּה, כֻּלָּהּ טְמֵאָה מִדְרָס. פֵּרְשָׁה, הִיא טְמֵאָה מִדְרָס, וְהַמִּטָּה מַגַּע מִדְרָס. הָיְתָה טְמֵאָה טֻמְאַת שִׁבְעָה וְחִבְּרָהּ לַמִּטָּה, כֻּלָּהּ טְמֵאָה טֻמְאַת שִׁבְעָה. פֵּרְשָׁה, הִיא טְמֵאָה טֻמְאַת שִׁבְעָה, וְהַמִּטָּה טְמֵאָה טֻמְאַת עָרֶב. הָיְתָה טְמֵאָה טֻמְאַת עֶרֶב וְחִבְּרָהּ לַמִּטָּה, כֻּלָּהּ טְמֵאָה טֻמְאַת עָרֶב. פֵּרְשָׁה, הִיא טְמֵאָה טֻמְאַת עֶרֶב, וְהַמִּטָּה טְהוֹרָה. וְכֵן הַשֵּׁן שֶׁל מַעְדֵּר:

ז׳
Bartenura

כרע – [leg] of a bed which was impure with defilement by treading. That the person with gonorrhea tread on the bed leg when he was on its own and it was not connected to the med.

כולה טמאה מדרס – for attachment was done to it, as if it is all one body.

היתה טמאה טומאת שבעה – such as, for example, that it came in contact with a corpse.

טומאת ערב – that it came in contact with someone who was defiled through contact with a corpse.

והמטה טהורה – that it (8.e. the bed) was not defiled through contact of the leg [of the bed]. For it was first [degree of ritual impurity], and a person nor vessels are susceptible to defilement other than from a primary source of defilement.

מעדר (mattock, share of the plough/pitchfork for the first stage of winnowing – passing the grain from one side to the other) – a wooden vessel/utensil that has teeth that turn over the straw, and its teeth are metal. And because the teeth are of joints inserted therein, its law is like that of a bed which is of links. And this and similar to it, it is referring to the defilement for seven days, for the share of the plough does not defile through treading.

כרע. של מטה שהיתה טמאה מדרס. שדרס הזב על הכרע כשהיה בפני עצמו שלא היה מחובר למטה:

כולה טמאה מדרס. דחיבור עביד לה כאילו כולה גוף אחד:

היתה טמאה טומאת שבעה. כגון שנגעה במת:

טומאת ערב. כגון שנגעה בטמא מת:

והמטה טהורה. דלא נטמאת בנגיעת הכרע. דראשון הוה, ואין אדם וכלים מקבלין טומאה אלא מאב הטומאה:

מעדר. כלי עץ שיש לו שינים ומהפכים בו את התבן, ושיניו של מתכת. ולפי שהשינים של פרקים ונעוצים בו, דינו כדין מטה שהיא של פרקים. והאי וכן, אטומאת שבעה קאי, דאין מעדר מטמא מדרס: