Reference for Yevamot 134:13

<big><strong>גמ׳</strong></big> העובר: אי בת כהן לישראל היא פסיל לה (ויקרא כב, יג) כנעוריה פרט למעוברת אי בת ישראל לכהן היא לא מאכיל לה ילוד מאכיל שאינו ילוד אינו מאכיל:

OR NOT. IF A HOUSE COLLAPSED UPON A MAN AND UPON HIS BROTHER'S DAUGHTER,<span class="x" onmousemove="('comment',' To whom he had been married and who, like himself, died childless. ');">³⁶</span> AND IT IS NOT KNOWN WHICH OF THEM DIED FIRST, HER RIVAL MUST PERFORM <i>HALIZAH</i><span class="x" onmousemove="('comment',' With the daughter's father, the brother of the deceased. Though the dead woman was his forbidden relative, her rival becomes subject to the halizah because it is possible that the woman had been killed before the man, and when the man died her former rival was no longer related to her. V. infra note 6. ');">³⁷</span>

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