One who makes a neder prohibiting “dates” is permitted date honey. [If he makes a neder prohibiting] “winter grapes,” he is permitted vinegar of winter grapes. R' Yehudah ben Beseira says: Whenever the derivative carries the name of its source, and he makes a neder prohibiting the source, he is forbidden the derivative as well. The Sages, however, permit it.

One who makes a neder prohibiting “wine” is permitted apple wine; [if he prohibited] “oil,” he is permitted sesame oil; [if] “honey,” he is permitted date honey; [if] “vinegar,” he is permitted vinegar of winter grapes; [if] “leek,” he is permitted leeks with a head; [if] “vegetables,” he is permitted wild vegetables because it is an appellative.

[If one made a neder prohibiting] “cabbage,” he is forbidden ispargos; [if] “ispargos,” he is permitted cabbage. [If] “grits,” he is forbidden grits pottage; R' Yose, how- ever, permits it. [If] “grits pottage,” he is permitted grits. [If] “grits pottage,” he is [also] forbidden garlic; R' Yose, however, permits it; [if] “garlic,” he is permitted grits pottage. [If] “lentils,” he is for- bidden waste of lentils; R' Yose, however, permits it; [if] “waste of lentils,” he is permitted lentils. [If one says:] “Wheat grain, wheat grains, with respect to my tasting [them],” he is forbidden them whether [in the form of] flour or bread; “Grits, grits with respect to my tasting [them],” he is forbidden them whether raw or cooked. R' Yehudah says: [If he says:] “Konam, grits or wheat grain with respect to my tasting,” he is permitted to chew them raw.

One who makes a neder prohibiting greens is permitted gourds; R' Akiva, however, forbids [them]. They said to R' Akiva: Doesn't a person say to his agent: “Buy me greens,” and he says: “I found only gourds”? He said to them: Indeed, it is so; but does he say to him: “I found only legumes”? [It is] only [because] bitter gourds are included under the category of greens, but legumes are not included under the category of greens. He is forbidden fresh Egyptian beans, but permitted dry [ones].