is [also] prohibited. (The plowing before the planting is also prohibited, if not biblically, certainly rabbinically). The Rambam lists plowing first, and planting second. See further: Mishneh Torah Shabbat 7:3, 8:1, 21:2–4; Chayei Adam Shabbos 10 Reaping Hebrew: (Kotzer) Definition: Severing a plant from its source of growth. Removing all or part of a plant from its source of growth is reaping. Climbing a tree is rabbinically forbidden, for fear this may lead to one tearing off a branch. Riding an animal is also rabbinically forbidden, as one may unthinkingly detach a stick with which to hit the animal. See further: Mishneh Torah Shabbat 8:3–5, 21:6–10; Chayei Adam Shabbos 12 Gathering Hebrew: (Me'amer) Definition: Initial gathering of earth-borne/organic material in its original place. E.g. After picking strawberries, forming a pile or collecting them into one's pockets, or a basket. Collecting rock salt or any mineral (from a mine or from the Earth) and making a pile of the produce. This can only occur in the place where the gathering should take place. So, a bowl of apples that falls in a house can be gathered as 1) they do not grow in that environment and 2) they were already initially gathered in the orchard. However, subsequent gathering, which improves the object(s) affected is included in this law. For example, stringing diamonds together to form a necklace is a significant improvement of their gathered status. This may well extend to pearls as well. See further: Mishneh Torah Shabbat 8:5, 21:11; Chayei Adam Shabbos 13 Threshing/extraction Hebrew: (Dosh) Definition: Removal of an undesirable outer from a desirable inner. This is a large topic of study. It refers to any productive extraction and includes juicing fruits and vegetables and wringing (desirable fluids) out of cloths, as the juice or water inside the fruit is considered 'desirable' for these purposes, while the pulp of the fruit would be the 'undesirable.' As such, squeezing (S'ḥita) to extract a desirable inner is generally forbidden unless certain rules are applicable dependant upon the case. The wringing of undesirable water out of cloths may also come under scouring/laundering. This activity should be viewed more accurately as extraction, while sorting (see below) is more akin to purification. See further: Mishneh Torah Shabbat 8:7–10, 21:12–16; Shulkhan Arukh Orach Chayim 319–321; Chayei Adam Shabbos 14 Winnowing Hebrew: (Zoreh) Definition: Sorting undesirable from desirable via the force of air (Babylonian Talmud), or