Halakhah su Deuteronomio 19:7

You should know that one thing can have in it [both] a positive commandment and a negative commandment in one of three ways: If any act should be a positive commandment; but one who violates it transgresses a negative commandment, like Shabbat and holidays and the release [of the seventh year] - in which work is a negative commandment and rest upon them is a positive commandment, as will be explained. And likewise the fast of Yom Kippur is a positive commandment, but eating upon it is a negative commandment. Or when it is a negative commandment that is preceded by a positive commandment; like it states about a rape (Deuteronomy 19:29) or one who puts out a bad name (Deuteronomy 19:19), "and she shall be as a wife for him" - which is a positive commandment - but it also states, "he many not send her away all of his days," and that is a negative commandment. Or if the negative commandment is first and is afterwards rectified by a positive commandment, such as "do not take the mother together with her young" (Deuteronomy 19:6); and then "You shall surely send away the mother" (Deuteronomy 19:7). And in each of these types, it is appropriate to count the positive commandment in it among the positive commandments and the negative commandment in it among the negative commandments. As the Sages said, in explaining each one of them, that they are a positive commandment and a negative commandment. And many times they will say, "the positive commandment in it," and "the negative commandment in it." And this matter is clear, for the content of the command in them is different than the content of the prohibition. And both of them are two different matters, one that He commanded and one that He prohibited. And no one ever erred about this principle.