[א] יכול הרואה שלשה בתחלה תהיה זבה, ומה אני מקיים "ואשה כי תהיה זבה דם"? – ברואה יום אחד, אבל הרואה שלשה בתחלה תהיה זבה. ת"ל "בלא עת נדתה…על נדתה" – אחר נדתה היא מטמאה ואינה מטמאה בתחלה.
1) I might think that if she sees (a flow) three (consecutive days) in the beginning (i.e., before the onset of her niddah time) she becomes a zavah (to count seven clean days and to bring an offering). And how will I understand (Vayikra 15:19) "And a woman, if she has a flow, etc." (where seven clean days and an offering are not required)? As referring to (her seeing for) one day; but if she sees for three days in the beginning (as above) she would become a zavah (for counting clean days and for an offering). It is, therefore written (Vayikra 15 verse 25) "above her niddah state" — She becomes tamei (for the above purposes) after her niddah state, and not in the beginning (i.e., before the onset of her niddah time.)
[א] יכול הרואה שלשה בתחלה תהיה זבה, ומה אני מקיים "ואשה כי תהיה זבה דם"? – ברואה יום אחד, אבל הרואה שלשה בתחלה תהיה זבה. ת"ל "בלא עת נדתה…על נדתה" – אחר נדתה היא מטמאה ואינה מטמאה בתחלה.
1) I might think that if she sees (a flow) three (consecutive days) in the beginning (i.e., before the onset of her niddah time) she becomes a zavah (to count seven clean days and to bring an offering). And how will I understand (Vayikra 15:19) "And a woman, if she has a flow, etc." (where seven clean days and an offering are not required)? As referring to (her seeing for) one day; but if she sees for three days in the beginning (as above) she would become a zavah (for counting clean days and for an offering). It is, therefore written (Vayikra 15 verse 25) "above her niddah state" — She becomes tamei (for the above purposes) after her niddah state, and not in the beginning (i.e., before the onset of her niddah time.)