Reference for Bava Batra 221:2
ואין לי אלא בת בן מנין אמרת קל וחומר ומה בת שהורע כחה בנכסי האב יפה כחה בנכסי האם בן שיפה כחו בנכסי האב אינו דין שיפה כחו בנכסי האם וממקום שבאת מה להלן בן קודם לבת אף כאן בן קודם לבת
— [Obviously] only when her father is from one tribe and her mother from another tribe, and both died, and she inherited [from] them. [From this] one may only [derive the law in respect of] a daughter. whence [may the law respecting] a son [he derived]?<span class="x" onmousemove="('comment',' That a son also inherits from his mother. ');"><sup>3</sup></span> — One may derive it by an inference from minor to major: If a daughter, whose claims upon her father's property are impaired,<span class="x" onmousemove="('comment',' Since a son takes precedence over her. ');"><sup>4</sup></span> has strong legal claims upon the property of her mother, should a son, whose claims upon the property of his father are strong, not justly have strong legal claims<span class="x" onmousemove="('comment',' To be heir. ');"><sup>5</sup></span>