Mishnah Shabbat sources for 3.6.18

(1) There are two [types of] transfers on Shabbat which amount to four inside, and two which amount to four outside. How so? [This is illustrated by] a poor person standing outside and a homeowner [standing] inside: [If] the poor person reaches his hand inside and puts [something] into the hand of the homeowner, or takes [something] from [the hand] and brings it outside, the poor person is liable and the homeowner is exempt. [If] the homeowner reaches his hand outside and puts [something] into the hand of the poor person, or takes [something] from [the hand] and brings it inside, the homeowner is liable and the poor person is exempt. [If] the poor person reaches his hand inside and the homeowner takes [something] from it, or puts [something] into it, and [the poor person] brings it outside, they are both exempt. [If] the homeowner reaches his hand outside and the poor person takes [something] from it, or puts [something] into it, and [the homeowner] brings it inside, they are both exempt.

(6) Women die in childbirth for three transgressions: If they are not careful with [the laws] of menstruation; and if they are not careful [to separate some] dough [when baking to give to the priest]; and if they are not careful with the lighting of the [Shabbat] lamp.

(7) At dusk on the eve of shabbat, a man must make three statements: Have you separated the tithe? Have you prepared the Eruv [the halachic merging of separate domains by means of setting aside an amount of food in a designated place]? Light the lamps! If it is uncertain whether it is night [dark] or not, one may not tithe [produce that is] certainly untithed; and one may not immerse vessels [in a Mikveh]; and one may not light the lamps. One may [however] tithe Demai [produce from which it is uncertain whether tithes were already taken]; and one may prepare the Eruv, and one may cover [pots] of hot food [to retain their heat.]

(2) The [number of] principal Melakhot is forty minus one. [The forbidden Melakhot are]: Sowing, plowing, reaping, binding sheaves, threshing, winnowing, sorting, grinding, sifting, kneading, baking, shearing wool, whitening it, combing it, dyeing it, spinning, weaving, making two loops, weaving two threads, separating two threads, tying [a knot], untying [a knot], sewing two stitches, tearing for the purpose of sewing two stitches, hunting a deer, slaughtering it, skinning it, salting it, curing its hide, scraping it, cutting it, writing two letters, erasing for the purpose of writing two letters, building, demolishing, extinguishing a flame, lighting a flame, striking with a hammer, carrying from one domain to another. These are the principal Melakhot - [they number] forty minus one.

(8) [If on Shabbat] a gentile lights a candle a Jew may use its light; but if [he lit it] on behalf of the Jew it is prohibited [to use it]. [If a gentile] filled [a vessel with] water to give to his cattle to drink a Jew may give his cattle to drink after him [from that vessel]; but if [the gentile filled the water] on behalf of the Jew it is prohibited [to use it]. [If] a gentile makes a ramp to descend [from a ship], a Jew may descend [thereon] after him; but if [the gentile made it] on behalf of the Jew it is prohibited [to use it]. It once happened that Rabban Gamliel and the Elders were arriving on a ship and a gentile made a ramp to descend [from the ship] whereupon Rabban Gamliel and the Elders descended using it.