Bava Batra 48B

ב״שדה״ סתם, אבל ב״שדה זו״⁠ – לא.

in a case where the seller was compelled to sell an unspecified field. Since he had a choice as to which field to sell, the presumption is that he sold it sincerely. But in a case where the one coercing him specified this specific field to be sold, the sale is not valid, as the seller did not decide freely on any aspect of the sale.

וב״שדה זו״ נמי לא אמרן ⁠– אלא דלא ארצי זוזי, אבל ארצי זוזי ⁠– לא.

And even in a case where the one coercing him specified this specific field to be sold, we said that the sale is invalid only where the seller did not count [artzei] the money for the field, but if the seller did count the money, then we do not say that the sale is invalid.

ולא אמרן אלא דלא הוה לאישתמוטי, אבל הוה ליה לאישתמוטי ⁠– לא.

And we said that the sale is invalid in the case of a specified field when money was not counted only where the seller had no way to avoid the coercion. But if the seller had a way to avoid the coercion and did not avoid it, then we do not say that the sale is invalid.

והלכתא בכולהו דהוו זביניה זביני, ואפילו בשדה זו ⁠– דהא אשה כ״שדה זו״ דמיא, ואמר אמימר: תליוה וקדיש ⁠– קדושיו קדושין.

The Talmud concludes: And the halakha in all of these cases is that the sale is valid, and this is so even in the case of a specified field. This can be inferred because the case of a woman forced to accept betrothal is comparable to the case of a specified field, as a specific man is performing the betrothal, and Ameimar says: If a man suspended a woman and betrothed her, his betrothal is valid, despite the fact that she was coerced.