One might have thought that he may not become impure to bury a spine, or for a skull, or to bury most of the skeleton or most of the number of bones of other relatives for whom a priest becomes impure. You say in response: Just as his sister is unique in that her body is dependent upon the brother tending to her burial, and he becomes impure to bury a spine, or to bury a skull, or to bury most of her skeleton, or to bury most of her number of bones, so too, with regard to every person whose body is dependent upon him, i.e., his other close relatives, he becomes impure to bury a spine, or to bury a skull, or to bury most of his skeleton, or to bury most of his number of bones. This presents a difficulty for the opinion of Rav that a priest may not become impure to bury any relative whose head has been severed.

The Gemara answers: That baraita also represents the opinion of Rabbi Yehuda. And Rav stated his opinion in accordance with the opinion of this tanna, as it is taught in a baraita: An incident occurred in which the father of Rabbi Yitzḥak the priest died in Ginzak, and they came and informed him after three years had passed, and he came and asked Rabbi Yehoshua ben Elisha and four Elders who were with him whether he was permitted to become ritually impure by transferring his father’s remains to his ancestral grave, as was the custom.

And they said to Rabbi Yitzḥak that the verse states: “For his father” (Leviticus 21:2), which indicates a priest may become impure only when his father is whole, and not when he is lacking. After three years the father’s body was certainly not whole, and therefore his son, a priest, was no longer permitted to become impure to bury him.

MISHNA: Three types of actions are prohibited for a nazirite: Contracting ritual impurity imparted by a corpse, and shaving his hair, and eating or drinking any substances that emerge from the vine. There is a greater stricture with regard to the prohibitions of impurity and shaving than that of substances that emerge from the vine, as impurity and shaving negate his naziriteship, i.e., he must add thirty days to his term of naziriteship or start it afresh. But if he eats or drinks that which emerges from the vine, this does not negate his naziriteship.

Conversely, there is a greater stricture with regard to substances that emerge from the vine than with regard to impurity and shaving, as in the case of products that emerge from the vine nothing is exempted from its general prohibition in certain circumstances, i.e., there are no exceptions. But with regard to impurity and shaving certain cases are exempted from their general prohibition. For example, there are the cases of obligatory shaving, e.g., a leper who was purified during his naziriteship, and of a corpse with no one to bury it [met mitzva]. A nazirite may tend to the burial of a met mitzva, despite the fact that he will thereby contract ritual impurity from a corpse.

The mishna adds: And there is a greater stricture with regard to impurity than with regard to shaving, as a nazirite’s impurity negates all his days of naziriteship and begins his term afresh, and he is liable to bring an offering for it, before starting his new term of naziriteship. But shaving negates only thirty days at most, and he is not liable to bring an offering for it.

GEMARA: The Gemara asks: And perhaps one should say that the ritual impurity of a nazirite should not be exempted from its general prohibition even for a met mitzva, due to an a fortiori inference from the prohibition of wine: And if wine, whose prohibition is lighter, as it does not negate his naziriteship, is nevertheless not exempted from its general prohibition, then with regard to impurity, which is stringent, as it does negate his naziriteship, is it not logical that it should not be exempted from its general prohibition?

The Gemara answers: Therefore, the verse states, in addition to the general prohibition: “He shall not come near to a dead body” (Numbers 6:6), that: “For his father or his mother, for his brother or for his sister, he shall not become impure when they die” (Numbers 6:7). This verse teaches that it is to bury his father or for his mother that he may not become impure; however, he becomes impure to bury a met mitzva.

The Gemara suggests: If so, one can make the reverse argument. And let wine be exempted from its general prohibition due to an a fortiori inference from the prohibition of impurity: If impurity, which negates naziriteship, is exempted from its general prohibition; with regard to wine, which does not negate naziriteship, is it not logical that it should be exempted from its general prohibition for the sake of a mitzva, e.g., for one who took an oath to drink wine? The Gemara answers: It is for this reason that the verse states with regard to a nazirite: “He shall abstain from wine and strong drink” (Numbers 6:3). The emphasis on the words “wine and strong drink” comes to prohibit obligatory wine like optional wine.

The Gemara further asks: And let wine negate all his days of naziriteship, due to an a fortiori inference from the prohibition of impurity: If impurity, which is exempted from its general prohibition, negates all of his naziriteship, then with regard to wine, which is not exempted from its general prohibition, is it not all the more so logical that it should negate his entire naziriteship?

The Gemara answers: Therefore, the verse states: “But the former days shall be void, for his naziriteship was rendered impure” (Numbers 6:12). The phrase “for his naziriteship was rendered impure” is apparently redundant, as it is clear from the context that the verse is referring to an impure nazirite. Rather, this teaches that only impurity negates his naziriteship, and wine does not negate it.

The Gemara continues to ask along the same lines: And let shaving negate all his naziriteship, due to an a fortiori inference from the prohibition of impurity: And if in the case of impurity, in which the one who renders another impure is not like the one who becomes impure, i.e., one who renders a nazirite ritually impure does not perform a transgression, as only the nazirite who contracts the impurity has performed a transgression, impurity nevertheless negates all his naziriteship; then with regard to shaving, in which the one who shaves is like the one who is shaved, as someone who shaves a nazirite also performs a transgression, is it not logical that it should negate all his naziriteship?

The Gemara answers: Therefore, the verse states: “But the former days shall be void, for his naziriteship was rendered impure” (Numbers 6:12). The emphasis on the phrase “for his naziriteship was rendered impure” teaches that impurity negates all, and shaving does not negate all.

The Gemara suggests: But in that case, one can argue the opposite: With regard to impurity, let the one who renders another impure be like the one who becomes impure, due to an a fortiori inference from the prohibition of shaving: If in the case of shaving, which negates only thirty days, the one who shaves is like the one who is shaved; then, with regard to impurity, which negates all, is it not logical that the one who renders another impure should be like the one who becomes impure?

The Gemara responds: Therefore, the verse states: “And if any man dies very suddenly beside him, and he renders impure his consecrated head” (Numbers 6:9). This teaches that the prohibition of impurity applies only to one who renders impure his consecrated head, but not to others who render him impure.

The Gemara suggests: But if so, one can say the reverse: And with regard to shaving, let the one who shaves not be like the one who is shaved, due to an a fortiori inference from the prohibition of impurity: And if in the case of impurity, which is stringent in that it negates all his naziriteship, the one who renders another impure is nevertheless not like the one who becomes impure; then with regard to shaving, which negates only thirty days, is it not all the more so logical that one who shaves should not be like the one who is shaved?

The Gemara answers: Therefore, the verse states: “No razor shall come upon his head” (Numbers 6:5). Since the verse is written in the passive, read into the verse that he, the nazirite himself, shall not cause a razor to come upon his head; and read the verse as also referring to any other person, who shall not cause a razor to come upon the nazirite’s head.

The Gemara asks: And let shaving not be exempted from its general prohibition in the case of a leper, due to an a fortiori inference from the prohibition of wine: And if wine, which does not negate naziriteship, is not exempted from its general prohibition; then, with regard to shaving, which does negate naziriteship, is it not logical that it should not be exempted from its general prohibition? The Gemara answers: Therefore, the Merciful One states with regard to a leper: “That he shall shave all his hair,” and adds: “Off his head” (Leviticus 14:9). And the Merciful One further states: “And his beard,” which teaches that he shaves despite the prohibition of naziriteship.

The Gemara proposes the reverse argument: And let shaving not negate naziriteship at all, due to an a fortiori inference from the prohibition of wine: And if wine, which is not exempted from its general prohibition, does not negate naziriteship; then with regard to shaving, which is exempted from its general prohibition, is it not logical that it should not negate naziriteship? The Gemara answers: We require hair growth, and there is none at that point. Consequently, the nazirite must necessarily wait until his hair is of sufficient length to shave.

The Gemara asks: And let wine negate thirty days, due to an a fortiori inference from the prohibition of shaving: And if shaving, which is exempted from its general prohibition, nevertheless negates thirty days; then with regard to wine, which is not exempted from its general prohibition, is it not logical that it should negate thirty days? The Gemara answers: As that reason for the halakha that shaving causes a nazirite to negate thirty days is only due to hair growth, so that he has sufficient hair at the end of his naziriteship to shave, the halakha does not apply with regard to wine, since his hair remains in place. The nazirite himself has not changed, so the fact that he has drunk wine is not sufficient reason to negate any time.