What is raw saliva? Anyone who has not tasted anything. [What is] split-bean water? Chewed split beans which were sepa-rated from their peels. [What is] urine? That which fermented.  One must scrub [the stain] three times with each and every one [of the detergents]. [If] one applied [these detergents] out of their sequence, or if he applied [all] seven detergents simultaneously, he has not accomplished anything.

[For] any woman who has a fixed period, her time suffices for her.  And these are the fixed periods: She yawns, or sneezes, or she feels pain in the area of her navel, or in her lower abdomen, or she streams [blood], or a type of shivering takes hold of her, and so too similar [symptoms]. If she establishes for herself [any of these symptoms] three times, it is a fixed period.

[If] she was accustomed to experience a [menstrual] discharge at the beginning of the episodes, all the tohoros that she handled for the duration of the episodes are tamei. [If] at the end of the episodes, all the tohoros that she handled for the duration of the episodes are tahor. R’ Yose says: Days and hours also are [established as] fixed periods. [If] she was accustomed to experience a discharge at sunrise, she is forbidden [for cohabitation] only at sunrise. R’ Yehudah says: The entire day is [permitted] for her.

[If] she was accustomed to experience a discharge [every] fifteenth day, and she changed to discharging on the twentieth day, [both] this [day] and that [day] are forbidden. [If] she changed twice to the twentieth day, both this [day] and that [day] are forbidden. [If] she changed three times to the twentieth day, the fifteenth [day] becomes permitted, and she has estab-lished for herself the twentieth day [as her fixed period]. For a woman does not establish for herself a fixed period until she establishes it three times, and she does not become free from a fixed period until it is uprooted from her three times.