Translation of the original text

Laws of the Sanctification of the new Moon

There is one positive commandment: to calculate, to know, and to establish on which day each month of the year begins. Explanation of this commandment is in these chapters.

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1. Bamidbar 28:14
2. Shemos 12:2
3. Rosh Hashanah 20b; Menachot 29a
4. Dvarim 16
5. Megilla 5a; Nazir 7a
1. This is part of Law 1.
2. This is part of Law 4.
1. My understanding of the word usage in the original.
3. See Chapter 11, Law 7 on the start of Jewish Zodiac. (TODO reference)
1. This is Law 5.