Nedarim 91B

אהלויי דהוו הכא האידנא, אי אנת לא ⁠— דלמא מנהון. אמר רב נחמן: עיניה נתנה באחר, ולית בה מששא במלה.

aloe merchants [ahaloyei] who were here just now should be blamed; if it was not you, perhaps it was one of them. The case came before Rav Naḥman, who said: There is reason to suspect that she might have cast her eyes upon another man, and therefore there is no substance to her words. She lacks credibility and her statement is unreliable, and so she remains permitted to her husband.

ההיא איתתא דלא הוה בדיחא דעתה בהדי גברא. אמר לה: האידנא מאי שנא? אמרה ליה: מעולם לא צערתן בדרך ארץ כי האידנא. אמר לה: לא הוה הדא מילתא האידנא. אמרה ליה: אם כן הלין נכרים נפטויי דהוו הכא האידנא, אי אנת לא ⁠— דלמא חד מנהון. אמר להו רב נחמן: לא תשגיחון בה, נותנת עיניה באחר הואי.

It is further related that there was a certain woman who was displeased with her man. He said to her: What is different now? What have I done to make you angry? She said to him: I am upset because you never hurt me while we were engaged in proper sex as you did just now. He said to her: This matter did not occur now. She said to him: If so, it may be that one of the non-Jew oil merchants [naftoyei] who were here just now should be blamed; if it was not you, perhaps it was one of them. Rav Naḥman said to them: Take no notice of her; she has cast her eyes upon another man, and her words are therefore unreliable.

ההוא גברא דהוה מהרזיק בביתא הוא ואינתתא. על אתא מריה דביתא, פרטיה נואף להוצא וערק. אמר רבא: איתתא שריא. אם איתא דעבד איסורא ⁠— ארכוסי הוה מירכס.

The Talmud relates another incident about a certain man who was secluding himself [meharzeik] in a house, he and a certain married woman. When the owner of the house entered, the adulterer burst through the wall of palm branches and fled. Rava said: The woman is permitted to her husband. The assumption is that she did not sin, for if it is so that the man had committed a transgression, he would have hidden himself in the house instead of revealing his identity by escaping in the open.