Reference for Bava Batra 220:4

ודלמא בנות צלפחד הוא דקאמרן הכי ניתנה תורה ונתחדשה הלכה אלא מחוורתא כדשנין מעיקרא

is deduced from, And every daughter, that possesseth an inheritance.<span class="x" onmousemove="('comment',' Num. XXXVI, 8. ');">⁷</span> R. Aha b. Jacob said: [The law of a son's precedence over a daughter may he inferred] from here: Why should the name of our father be done away from among his family, because he had no son?<span class="x" onmousemove="('comment',' Ibid. XXVII, 4. ');">⁸</span>

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