This is not an error of duplication. The full-fledged version of this Mitzvah are many and change for those who are learning the one/three chapter a day. The Message for the day from "Bringing Heaven Down to Earth" at the end of this Mitzvah is different than that of yesterday.

Positive Mitzvah 106: Impurity of a "Zavah"
Leviticus 15:1 "And if a woman has a discharge..."

Zavah is a state of impurity that may befall a woman.

---

Our souls cannot be broken that they should need repair, nor deficient that they should need anything added. Our souls need only to be uncovered and allowed to shine.

From: Bringing Heaven Down to Earth by Tzvi Freeman - tzvif@aol.com