Soncino English Talmud
Nazir
Daf 56a
R. Ashi raised the following objection: I am only told that the days Of his defilement are not reckoned in the number [of days of his naziriteship]. How do we know [that the same is true] of the days of his declared leprosy? This follows by analogy. [After] the days of defilement, he must poll and bring an offering, and [after] the days of his declared leprosy, he must poll and bring an offering. Whence we should infer that just as the days of his defilement are not reckoned in the number [of days of his naziriteship], so the days of his declared leprosy are not reckoned in the number! No! If you say this of the days of his defilement, where the previous days are rendered void because of them, would you also say it of the days of his declared leprosy where the previous days are not rendered void because of them? I can argue then in the following manner. Seeing that a nazirite [who undertakes his naziriteship] at the graveside, whose hair is ripe for polling because of his naziriteship, does not count [the time spent at the grave] in the number [of days of his naziriteship]. surely the days of his declared leprosy when his hair is not ripe for polling because of the naziriteship should not be counted. In this way we may only infer that the period of his declared leprosy [may not be counted]. How do we know that [the same is true] of his tale of days? This follows by analogy.