אלא לאו, בנזירות מרובה, וקתני: מתחיל ומונה מיד! הוא מותיב לה והוא מפרק לה: בנזירות בת חמשים יום, דיתיב עשרין, ואיתילידא ביה צרעת. מגלח צרעתו, והדר יתיב תלתין יומין דנזיר. דהא אית ליה גידול שער.
Rather, is it not the case that the Mishnah is referring to a lengthy naziriteship, and nevertheless it teaches: He starts counting immediately, which indicates that his time as a metzora is not included? Rav Sherevya raised the objection and he resolved it: The Mishnah is referring to a naziriteship of 50 days, in a case where he sat and observed 20 days of his vow, and at that point he developed tzara'at. In that case, he shaves for his tzara'at, and he again sits for 30 days as a nazirite. The problem of 30 days’ hair growth does not arise in this situation, as at the end of this period there is hair growth of 30 days.