Electric Wheelchairs on Shabbat

(2) This fundamental mishna enumerates those who perform the primary categories of labor prohibited on Shabbat, which number forty-less-one. They are grouped in accordance with their function: One who sows, and one who plows, and one who reaps, and one who gathers sheaves into a pile, and one who threshes, removing the kernel from the husk, and one who winnows threshed grain in the wind, and one who selects the inedible waste from the edible, and one who grinds, and one who sifts the flour in a sieve, and one who kneads dough, and one who bakes. Additional primary categories of prohibited labor are the following: One who shears wool, and one who whitens it, and one who combs the fleece and straightens it, and one who dyes it, and one who spins the wool, and one who stretches the threads of the warp in the loom, and one who constructs two meshes, tying the threads of the warp to the base of the loom, and one who weaves two threads, and one who severs two threads for constructive purposes, and one who ties a knot, and one who unties a knot, and one who sews two stitches with a needle, as well as one who tears a fabric in order to sew two stitches. One who traps a deer, or any living creature, and one who slaughters it, and one who flays it, and one who salts its hide, a step in the tanning process, and one who tans its hide, and one who smooths it, removing hairs and veins, and one who cuts it into measured parts. One who writes two letters and one who erases in order to write two letters. One who builds a structure, and one who dismantles it, one who extinguishes a fire, and one who kindles a fire. One who strikes a blow with a hammer to complete the production process of a vessel (Rabbeinu Ḥananel), and one who carries out an object from domain to domain. All these are primary categories of labor, and they number forty-less-one.

(1) 1. It is permitted to start an action on Friday near darkness even though the work cannot be completed on Friday and can only be finished on Shabbat. It is permitted to soak/ dissolve a ink or dye in water if it dissolves during Shabbat. It is permitted to put bundles of flax in the oven in order that they be whitened. It is permitted to put wool inside a large pot that is not on the fire, and it is covered with mud. But if the pot is on the fire it is forbidden, lest one stirs the coals. And even if it is not on the fire but it isn’t covered in mud, it is forbidden, lest he stir it with his hand. The one who stirs the pot even if it is not on the fire is liable because of cooking. It is permitted to spread out traps for animals, birds, and fish even though they will be trapped on Shabbat. It is permitted to sell to non-Jews and load it for him close to dark as long as he leaves the door of his house while it is still day. RAMA: And there are those that permit it when the non-Jew leaves on Shabbat if the non-Jew designates a place on the next day in the house of a Jew. And there are those who are strict in this matter (Mordechai). See below Siman 325.

(1) With regard to one who builds on Shabbat, thereby violating a prohibition in a primary category of prohibited labor, how much must he build to be liable to bring a sin-offering? The Sages said: One who builds is liable for building any amount. And one who chisels, or strikes with a hammer or with an adze, or one who drills a hole of any size on Shabbat, is liable. This is the principle: Anyone who performs a prohibited labor and his labor endures on Shabbat is liable. And so too, Rabban Shimon ben Gamliel says: Even one who strikes an anvil with a sledgehammer during his labor has performed a constructive act and is liable, because he is as one who improves the labor that he is performing.

(17) A sick person who is in bed with his illness but is not in danger Rem"a: Or if he has a pain that is bothering him and his whole body pains him, even if he still walks, he is similar to someone bedridden (HaMagid Chapter 2), we tell a non-Jew to provide medical treatment, but we do not violate Toraitic Shabbat prohibitions even if he has an endangered body part. Regarding a Jew actively breaking a rabbinic prohibition, there are some who allow it even if he does not have an endangered body part. There are those who say that if he has an endangered body part we break and if he doesn't, we do not break. There are those who say that if he doesn't have an endangered body part, we desecrate with a slight change, and if he has an endangered body part, we break without a change. And there are those who say that even if he has an endangered body part, we do not break any prohibition that is related to a Toraitic labor, and things that have no connection, we do even if he does not have an endangered body part. This third position is right. Rem"a: It is permitted to tell a non-Jew to cook something for a child that has nothing to eat, because the needs of a child are comparable to a non-endangered sick person. And everything that is forbidden for a Jew to do is also forbidden for the sick person himself to do, but if a non-Jew is doing something, the sick person is allowed to help a bit, because aiding is not considered substantial....

Every illness that the doctors say is dangerous, even though it is external on the flesh, they desecrate Sabbath for it. And if one doctor says [the treatment] is necessary [to save the patient's life] and one doctor says it is not necessary, they desecrate [the Sabbath by treating the patient]. And there is someone who says that it does not require an expert, because everyone is considered a bit of an expert, and a doubt when a life is at stake is resolved leniently. Gloss: Some say this is specifically regarding a Jew [that a nonexpert is relied upon] but ordinary nonJews who are not doctors are not treated like experts. Someone whom they wish to force to violate a great sin they do not desecrate the Sabbath for him in order to save him [from the sin].