Translation:Shulchan Aruch/Orach Chaim/15
15: Whether One may Transfer Fringes between Garments and the Law for a Ripped Shawl.
1 One is allowed to untie tzitsis from one shawl and to place them on another shawl; but not without transferring them to another garment. Gloss: And this applies specifically to a garment of one who is obligated, however it is permitted to untie the tzitzit from the tallit of the dead (Mordechai and Tosafot, Chapter "With what does one ignite", folio 22).
2 One is not able to take the corner the way it is, with the tzitzit, and to sew it onto another garment because we require it to be "on the corners of their garments", and this corner was not on this garment during the time it was made.
3 A tallit, that tzitzit was placed on it in accordance with the law, that was split into two, and in each part there is enough measurement to wrap oneself with, and there remained on each one of them 1 tzitzit or 2, there is no concern for "you should make – and not from that which is made".
4 If the tallit became torn within 3 fingerbreadths near the edge of the corner, one is not permitted to sew it up. And Rashi explained that we're worried that there will be left over from the sewing thread, and he will leave it, and he will add on to it 7 strings for the sake of tzitzit. And according to this reasoning, even if it was torn any amount, one should not sew it up. And according to this, a tallit of wool that became torn within 3, it is permitted to sew it up nowadays, since it's not the way to sew with wool strings. And Rav Amram explained that the reason is because a tear within 3 does not have the status of a garment, and it's as if it does not exist, and even if he sewed it on, it is considered that it is cut off; and if one were to make tzitzit for it, it would not exempt the tallit. And according to this explanation, if it was torn and there remained any part at all, it is valid. And there are those that say that according to Rav Amram he only invalidates the tzitzit that were on it at the time that he sewed it on, but if after he sewed it, he placed on it tzitzit, it is valid. And a God-fearing person complies with all of them where it's possible.
5 If it tore downward from the hole that the tzitzit hang from, if the tzitzit were put on before the tear, so that those tzitzit were there at the time of the tear, it is valid. And if it tore and there remained a little bit and he sewed it up, and afterwards he put tzitzit on it, if it is from wool, it is valid according to all opinions, and if it is of other materials that it's the way to sew with threads of that material, he should not sew it according to Rashi. And if it tore and he sewed it up and afterwards he put tzitzit on it, it is questionable.
6 One who sews a piece of cloth on the corners of the tallit, and so too that which we are accustomed to sew around the hole that the tzitzit are in, if the tallit is from silk and he sews with a thread of white silk, there should be caution with this matter according to the opinion of Rashi that there shouldn't be any sewing below 3 and above the knuckle of the thumb. Gloss: And so too is the law in any place that one sews with a thread that is the same material as the tzitzit since we're worried that maybe he'll take that thread for the strings of the tzitzit (T"H, chapter 46, in the name of the Haghos Maymoni).