The mouth that forbids is the mouth that permits / who imposes a restriction may remove it
Question: Only the authority that forbids a certain thing has the authority to permit that thing.
("The woman who said, 'I was a man's wife and divorced,' I believe, that the mouth that forbade is the mouth that permitted. And if there are witnesses who were a man's wife and she says, 'I am divorced,' she is not believed. She said, 'I was betrothed and pure,' I believe, that the mouth that forbade is the mouth that permitted" - it is written in 2:5, and so: "Who will delay a nose until the 'shat' "For the years of his choosing, later they will erase his error. The mouth that forbade is the mouth that permitted" - Bialik/Culture and Politics)
Translation
Expression (Hebrew)
הַפֶּה שֶׁאָסַר הוּא הַפֶּה שֶׁהִתִּיר
Definition (Hebrew)
בְּהַשְׁאָלָה: רַק לְאוֹתָהּ הַסַּמְכוּת שֶׁאָסְרָה עַל דָּבָר מְסֻיָּם יֵשׁ אֶת הַסַּמְכוּת לְהַתִּיר אֶת אוֹתוֹ הַדָּבָר.
("הָאִשָּׁה שֶׁאָמְרָה אֵשֶׁת אִישׁ הָיִיתִי וּגְרוּשָׁה אֲנִי-נֶאֱמֶנֶת, שֶׁהַפֶּה שֶׁאָסַר הוּא הַפֶּה שֶׁהִתִּיר. וְאִם יֵשׁ עֵדִים שֶׁהָיְתָה אֵשֶׁת אִישׁ וְהִיא אוֹמֶרֶת גְּרוּשָׁה אֲנִי- אֵינָהּ נֶאֱמֶנֶת. אָמְרָה נִשְׁבֵּיתִי וּטְהוֹרָה אֲנִי נֶאֱמֶנֶת שֶׁהַפֶּה שֶׁאָסַר הוּא הַפֶּה שֶׁהִתִּיר"- כְּתֻבּוֹת ב ה, וְכֵן:"מִי יְעַכֵּב אֵפוֹא בְּעַד הַ'שֶׁטְּאֵב' לְשַׁנּוֹת בְּחִירָתוֹ, לְאַחַר שֶׁיּוֹכִיחוּ לוֹ מֻמְחִים אֶת טָעוּתוֹ. הַפֶּה שֶׁאָסַר הוּא הַפֶּה שֶׁהִתִּיר"- בְּיָאלִיק/ תַּרְבּוּת וּפּוֹלִיטִיקָה)