Nazir

R. Hamnuna said: A nazirite or a celebrant of the passover who walks over a grave of the depth on his seventh day [of purification after defilement]  is clean,  the reason being that defilement of the depth is not potent enough to render void [the naziriteship or the passover]. Raba objected: IF IT WAS TO PURIFY HIMSELF AFTER DEFILEMENT  THROUGH CONTACT WITH THE DEAD HE REMAINS UNCLEAN, BECAUSE WHERE THE STATUS QUO IS ONE OF DEFILEMENT THE DEFILEMENT REMAINS, BUT WHERE IT IS ONE OF PURITY HE REMAINS CLEAN?  — [R. Hamnuna] replied: I admit you are right in the case of a nazirite who needs polling.  Raba [then] said to him: And I admit you are right in the case of a celebrant of the passover who has completed all preliminaries.  Abaye said [to Raba]: But has he not still to wait for the sun to set?  — He replied: The sun sets of its own accord. Abaye, too, gave up this opinion, for it has been taught: If it is on the day of fulfilment,  she must bring [a further sacrifice], but if during fulfilment she need not bring one.  It might be thought that she is not required to bring [a sacrifice] for a birth occurring during the fulfilment, but must bring one for a birth occurring after the fulfilment,  and discharge her obligation for both births,  and so Scripture says, And when the days of her purification are fulfilled,  which signifies that if it occurs on the day of fulfilment she must bring [a sacrifice] but not if it occurs during the fulfilment. [Whereon] R. Kahana explained that the difference  was due to the fact that she needed to bring a sacrifice.  Now, in the other case, has she not still to wait for the sun to set?  — Abaye replied: the sun sets of its own accord. MISHNAH. IF A MAN FINDS A CORPSE FOR THE FIRST TIME  LYING IN THE USUAL POSITION,  HE MAY REMOVE IT TOGETHER WITH THE SOIL THAT IT OCCUPIES.[IF HE FINDS] TWO, HE MAY REMOVE THEM TOGETHER WITH THE GROUND THEY OCCUPY. IF HE FINDS THREE, THEN IF THE DISTANCE BETWEEN THE FIRST AND THE LAST IS FROM FOUR TO EIGHT CUBITS,  THIS IS A GRAVEYARD SITE.