Study Nazir folio 56B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
Just as the days of his confirmed tzara'at require shaving, so too, the days of his counting require shaving; and just as the days of his confirmed tzara'at do not count as part of his tally of naziriteship, so too, the days of his counting should not count toward his term of naziriteship?
One might have thought that even his days of quarantine as a metzora should share the same halakha and not be counted. And it is logical that those days should not count for him either, as the two states are comparable: A confirmed metzora renders items ritually impure through lying or sitting, and
The Talmud rejects this argument: You can say in response: No, if you said this halakha with regard to the days of confirmed tzara'at, the reason is that his confirmed state of tzara'at requires him to shave after he is healed and to bring an offering before he can commence his naziriteship. Therefo
From here they stated: The days of a metzora’s counting and the days of his confirmed tzara'at, when he is a full-fledged metzora, do not count as part of his tally of his term of naziriteship. However, the days of the impurity of the zav and the zava and the days of a metzora’s quarantine do count
With regard to the issue at hand, in any event the baraita teaches: No, if you say that this is true with regard to his days of impurity, which negate the previous days, shall you also say that this is the case with regard to his days of confirmed tzara'at, which do not negate the previous ones? The