Nedarim 52a — the Talmud in English

A.

One who vows concerning meat,

he is

permitted with the gravy

of the meat,

and with kippa—

a thin layer of meat that congeals at the sides of the pot.

B. For these things are not called meat in ordinary human speech.

And Rabbi Yehuda forbids

the gravy and the kippa to one who vows concerning meat, since they contain taste that came out of the meat concerning which the vow was made, and therefore they are included within meat.

Rabbi Yehuda said: There was an incident

that occurred, in which we vowed concerning meat,

and Rabbi Tarfon forbade us eggs that had been cooked together with it

with the meat in one pot.

And it follows that one who vows concerning meat is forbidden even [to eat] something that is cooked with the meat and absorbs the taste of the meat into itself; and if so, he is also forbidden [to eat] gravy and kippa, for they contain the taste of meat.

They said to him

the Sages to Rabbi Yehuda:

That is indeed so,

for the law follows Rabbi Tarfon,

but his words do not contradict our position, for Rabbi Tarfon did not forbid the taste that comes out of the meat.

Rather,

when

Rabbi Tarfon forbade the taste that comes out of the meat, specifically

when he says, “This meat is upon me,”

for he forbade the meat lying before him; in this manner he considered the meat a piece of prohibition, and everything that comes out of it is also forbidden,

since this is the law:

that one who vows concerning a thing

that is specific,

and

and the thing concerning which he vowed

becomes mixed with

became mixed with

another thing,

which is permitted to him—

if there is in it

in the thing concerning which the vow was made that fell into the mixture,

an amount

a measure

that imparts taste—

that has a measure sufficient to impart taste to the permitted thing with which it became mixed (and its measure is one-sixtieth of the mixture

), it is forbidden

for the one who made the vow to partake of the entire mixture, since the mixture contains taste that came out of the thing concerning which the vow was made.

But if the thing concerning which the vow was made that fell into the mixture does not have a measure of one-sixtieth, which is the measure that imparts taste, the law is that the mixture is permitted.

And all this applies to one who vows concerning a specific thing. But one who vows concerning meat without specification is forbidden only actual meat, and is permitted [to partake of] everything cooked with it, even gravy and kippa.

B.

One who vows concerning wine is permitted [to partake] of a dish in which

wine became mixed and

there is the taste of wine in it,

for he vowed concerning wine, and this dish is not wine, and this is like the opinion of the Sages above concerning meat, that what comes out of the thing concerning which the vow was made is permitted when he did not vow concerning a specific thing.

C. But if

he said: “Konam, this wine that I taste,”

for he forbade specific wine that had been lying before him,

and it fell into

into

a dish,

since he forbade specific wine, what comes out of it is also forbidden; and therefore the law is that

if there is in it

in the wine that fell into the dish a measure of

an amount sufficient to impart flavor to the dish],

this

dish

is forbidden

to the one who made the vow, since it contains taste that came out of the wine forbidden to him.