2,933. A Corpse in the Nazir's Path

Hilchos Nezirus 9:17

The previous halacha applies when both nazirs say nothing or are in doubt. However, if one of them says that he wasn’t rendered unclean then he need not bring an offering even if two witnesses testify that he was. His statement that he wasn’t rendered unclean is understood as meaning that he won’t bring an impurity offering because he’s already had his nazirite vow absolved. He is therefore not contradicting the witnesses and one’s word is accepted regarding himself. But if he said nothing or was in doubt, then he brings an offering even based on the testimony of one witness, as has been explained. Similarly, if a witness says that person X made a nazirite vow in front of him but person X says that he didn’t, he’s not liable for anything. If he doesn’t disagree, he must observe nezirus based on the other’s testimony. Even if someone told two people that he saw one of them make a nazirite vow but he doesn’t know which one, if they don’t contradict him, they must both observe nezirus because of his words. If someone observed nezirus because of one witness’ testimony and he drank wine or was rendered unclean through corpse impurity after two witnesses warned him, he is punished with lashes even though he’s only a nazir based on the word of one witness.

Hilchos Nezirus 9:18

If a corpse is lying across the width of a path and a nazir walks past, he is ritually clean. This is true even if the only way to get by is over the corpse or by touching it, and even if it’s a known source of impurity. This is because a case of doubt regarding impurity in the public domain is ruled pure.