Chofetz Chaim Collection, Laws of Sotah 21

Comment: It seems that this [prohibition of teaching Torah to daughters] is only for the past, when each person would live in the location of his fathers, and one received one's father's traditions strongly, such that each person followed his fathers' path, as it says in the verse "Ask your father and he will tell you" (Deuteronomy 32:7). Under those circumstances we could say that she should not study Torah and rely on her fathers regarding proper behavior. But now, due to our numerous sins, the reception from fathers is very much weakened, and it even happens that [children] do not live in the same location as fathers at all, particularly those who study the languages of the [other] nations. [Today], it is certainly a great mitzvah to teach them [our daughters] the Bible and also Prophets and Writings and the ethical teachings of the Sages, such as Tractate Avot and the book Menorat Hama'or, and the like, so that the will come to appreciate the truth of our holy faith. If not, they may deviate completely from the path of God and violate all the principles of the religion, God forbid. [Translation by Atid]