Mishnah 1א׳
רַבִּי אֱלִיעֶזֶר אוֹמֵר, הָאוֹרֵג שְׁלשָׁה חוּטִין בַּתְּחִלָּה וְאַחַת עַל הָאָרִיג, חַיָּב. וַחֲכָמִים אוֹמְרִים, בֵּין בַּתְּחִלָּה בֵּין בַּסּוֹף, שִׁעוּרוֹ שְׁנֵי חוּטִין:
R. Eliezer says: If one weaves three strands in the beginning, and one on what is woven, he is liable. [If this is the beginning of a garment, he is not liable until he weaves three strands. And if he adds to what is woven, the quantity is one, for it combines with the rest.] The sages say: Both in the beginning and in the end, the amount is two strands.
Mishnah 2ב׳
הָעוֹשֶׂה שְׁנֵי בָתֵּי נִירִין בַּנִּירִין, בַּקֵּרוֹס, בַּנָּפָה, בַּכְּבָרָה וּבַסַּל, חַיָּב. וְהַתּוֹפֵר שְׁתֵּי תְפִירוֹת, וְהַקּוֹרֵעַ עַל מְנָת לִתְפֹּר שְׁתֵּי תְפִירוֹת:
If one places two threads of the warp on the cross-beam on the nirin [The gemara explains that he affixes twice every strand of the warp on the cross-beam, and the third time, he affixes it to the strand on the shaft], or on a keiros [a sheet woven of palm bast], a sifter, a sieve, or a basket, he is liable. And one who sews two stitches, and one who tears in order to sew two stitches [is liable].
Mishnah 3ג׳
הַקּוֹרֵעַ בַּחֲמָתוֹ וְעַל מֵתוֹ, וְכָל הַמְקַלְקְלִין, פְּטוּרִין. וְהַמְקַלְקֵל עַל מְנָת לְתַקֵּן, שִׁעוּרוֹ כַמְתַקֵּן:
If one rends his garment in his wrath, or over his dead one (he is not liable). [It is only over a dead one that he is not obligated to rend over that he is mekalkel ("destroying"), and exempt; but for one he is obligated to rend over, he is metaken ("amending"), and liable.]; and all who are mekalkel are exempt. [This Mishnah is rejected, and the halachah is that one who rends in his wrath is liable. For even though he is mekalkel vis-à-vis the garment, he is metaken vis-à-vis his yetzer (his emotions) and he sets his mind at rest thereby.] and if one is mekalkel in order to be metaken, the amount (for liability) is the same as that for metaken.
Mishnah 4ד׳
שִׁעוּר הַמְלַבֵּן וְהַמְנַפֵּץ וְהַצּוֹבֵעַ וְהַטּוֹוֶה, כִּמְלֹא רֹחַב הַסִּיט כָּפוּל. וְהָאוֹרֵג שְׁנֵי חוּטִין, שִׁעוּרוֹ כִּמְלֹא הַסִּיט:
The size (for liability) for whitening [wool], beating, dyeing, and spinning, [which are all avoth melachoth] is [to spin from that wool a strand whose length is] double the full breadth of a sit. [A sit is the full-breadth distance between the middle finger and the index finger. And double this distance is "double a sit." And the distance between the thumb and the index finger is also double the breadth of a sit, for it is double the distance between the middle finger and the index finger.] If one weaves two strands, its size (for liability) [in the breadth of the garment] is a full sit. [For even if he did not weave them along the full breadth of the garment, he is liable.]