Non-Jews do not have nezirus. Women and slaves do have nezirus. There is [an aspect of greater] stringency applying to women than to slaves, for one can force his slave [to violate his nezirus], but he cannot force his wife. There is [an aspect of greater] stringency applying to slaves than to women, for one can revoke his wife’s vows, but he cannot revoke his slave’s vows.  [If] he revoked for his wife —- he has revoked permanently; [if] he revoked for his slave —- [if] he went free, he completes his nezirus.  [If the slave] passed from his [masteR’s] presence —- R’ Meir says: He may not drink. But R’ Yose says: He may drink.

A nazir who shaved, and it [then] became known to him that he was tamei: if [it was due to] a known tumah —- he forfeits; if [it was due to] a tumah of the depths, he does not forfeit. If he had not yet shaved [when it became known to him, then] regardless of which [tumah] it was, he forfeits. How so? [If] he descended into a cave to immerse himself and a corpse was found floating at the mouth of the cave, he is tamei. [If] it was found sunken in the floor of the cave —- if he had gone down to cool himself, he is tahor; to purify himself from tumah of the dead, he is tamei; because someone tamei is presumed to remain tamei, while someone tahor is presumed to remain tahor, for the matter is indicated.

Someone who finds a corpse for the first time, lying in its usual manner, may remove it along with its surrounding earth. [If] he found two [corpses], he may remove them along with their surrounding earth. [If] he found three [corpses]: if [the distance] between this one and that one is from four to eight cubits, it is a graveyard zone. He must search from there outward [a distance of] twenty cubits. If he found one at the end of twenty cubits, he searches from there outward [a distance of] twenty cubits, for the matter is indicated, although had he found it at first he would have removed it together with its surrounding earth.

Any doubt concerning afflictions [of tzaraas] at the outset is tahor as long as it has not been confirmed to be tamei. Once it has been confirmed to be tamei, a doubt [is ruled to be] tamei.  A zav is checked in seven ways as long as he has not been confirmed to [be tamei] from zivah —- concerning food, drink, carrying a load, jumping, illness, sight, and thought. Once he has been confirmed [to be tamei from] zivah, we do not examine him —- his mishap, or doubts because of his seminal discharge are tamei, since the matter is indicated.  [If] someone struck his fellow and they assessed that he would die, but [his condition] improved from what it had been. After that, it worsened and he died —- [the attacker] is liable. R’ Nehemiah says: He is exempt, for the matter is indicated.