Similarly, if a nazirite touches or carries a bone from a corpse - even if it is merely the size of a barley-corn - must perform a shaving because of it and bring the sacrifices [required because of] impurity. All [of the days he observed] are invalidated. A bone the size of a barley corn does not, however, convey impurity if one was under the same shelter.
If, by contrast, [a nazirite] becomes impure because of contact with one of the following twelve matters, [the days he observed] are not invalidated:
a) a clod of earth from the Diaspora;
b) [earth from] a field in which a grave had been plowed; both of these convey impurity through touch or if they were carried;
c) branches which emerge from trees, protrusions that emerge from fences, from a bed, a camel, or the like, cover him and one of the twelve sources of impurity [mentioned in the Halachah 2];
d) he becomes impure by being under the same shelter as a quarter of a kav of bones that do not constitute the majority of the number of the corpse's bones, nor the greater portion of his structure;
e) he became impure because of a revi'it of blood from a corpse which conveys ritual impurity whether one touches it, carries it, or is found under the same shelter; f) he became impure because he touched or was under the same shelter as a gravestoneor a stone at the side of a grave; for they convey impurity in either of these two ways; g) he became impurity because of contact with a limb cut from a living person or a corpse which does not have sufficient flesh upon it.