Reference for Ketubot 204:15
אלא איהי דליתא בתנאי ב"ד מהני לה קנין בנות דאיתנהו בתנאי ב"ד לא מהני להו קנין
Rather [this is the explanation:] Since she is not covered by the court stipulation, kinyan is effective; the other daughters who are protected by court stipulation, kinyan is not effective.
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