Reference for Yevamot 154:12

במה דברים אמורים בעמוני ועמונית שנתגיירו אבל בתה מעמוני פסולה מאי בתה מעמוני אילימא עמוני שנשא עמונית היינו גיורת מכנה אלא עמוני שנשא בת ישראל א"ל פוק תני לברא:

excludes the Ammonitess. That "her son that is born from an Ammonite is ineligible" [is also correct] since he is in fact an Ammonite. In what respect, however, is "her daughter that was born from an Ammonite eligible"? If in respect of entering the assembly, is there, now that her mother is eligible. any need to mention her! The eligibility must consequently be in respect of marrying a priest. [But then what of the statement], "this, however, applies only to an Ammonite and an Ammonitess who were converted; but her daughter that was born from an Ammonite is ineligible"? What is meant by "her daughter that was born of an Ammonite"? If it be suggested that it refers to an Ammonite who married an Ammonitess,<span class="x" onmousemove="('comment',' Who were converted prior to the birth of their daughter. ');">²²</span> then this is the same case as that of a fundamental proselyte!<span class="x" onmousemove="('comment',' Who, as stated in the first clause, is eligible! ');">²³</span>

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