Talmud - Nedarim 29a נדרים כ״ט א׳

Rav Hamnuna said to Ulla: Where did their sanctity go? How can the consecrated saplings become non-sacred without being redeemed? And what would happen if one said to a woman while performing betrothal: Today you are my wife and tomorrow you are not my wife? Would she exit the marriage the next day without a bill of divorce? Likewise, in the mishna, once one consecrated the saplings, how is their sanctity withdrawn without redemption?

Rava said to him: How do you compare sanctity inherent in its value to inherent sanctity? Sanctity inherent in its value departs with nothing being done, since it is conditional. When the condition is fulfilled and the saplings are cut, the sanctity is removed. However, inherent sanctity, which relates to an entity that itself is consecrated, e.g., a betrothed woman, does not depart with nothing being done. An action must be performed in order to remove it.

Abaye said to him: And does inherent sanctity not depart with nothing being done? But isn’t it taught in a baraita that if one said: This ox is a burnt-offering for all of thirty days and after thirty days it is a peace-offering, for all of thirty days it is a burnt-offering and after thirty days it is a peace-offering. One can ask: Why is this so? These offerings are examples of inherent sanctity, and it departs with nothing being done. After thirty days, it is transformed into a peace-offering without any action being taken.

The Gemara answers: With what are we dealing here? It is a case where one did not consecrate the animal as a burnt-offering or peace-offering but rather he said that he was consecrating it for its monetary value, with which to purchase a burnt-offering or peace-offering. Therefore, there was no inherent sanctity.

The Gemara asks: If so, say the latter clause: If he said that after thirty days it should be a burnt-offering, and from now until thirty days it should be a peace-offering, his words are binding. Granted, if you say that one clause is referring to inherent sanctity and one clause is referring to sanctity inherent in its value,

Traduction : The William Davidson digital edition of the Koren Noé Talmud, with commentary by Rabbi Adin Even-Israel Steinsaltz.

Nedarim 29a explores how conditional consecration of saplings or offerings can lose sanctity without formal redemption, contrasting inherent versus value-based holiness.