פירוש על קידושין 7:11

The derashah states that a girl sold into slavery goes free at na’arut (age 12) and at bagrut (12.5). This is obviously superfluous—all the Torah needed to say is that she goes free at na’arut, and then she’ll already be free by bagrut.

"'She goes out free'—these are the days of being a bogeret; 'There is no money'—these are the days of being a na'arah". [Problem:] But if you say: If should have mentioned "these are the days of being a na'arah" first and afterwards "days of being a bogeret", solution: it is because "There is no money" is required to be assigned to the days of being a na'arah as we say earlier, "But there is money for a different master", this applies while she is a na'arah since the father has no rights to her bogeret daughter's kiddushin.