All equivalent terms [used] in nezirus are like nezirus. One who says: “I will be” —- is a nazir; or, “I will be handsome” —- [is] a nazir. “Nazik,” “naziach,” “paziach” —- he is a nazir.  [One who says:] “I am like this one,” “I am to stroke [my hair],” “I am to let [my hair] grow,” “It is [an obligation] upon me to let [my hair] grow long” —- he is a nazir.  [If he says:] “It is [an obligation] upon me [to offer] birds” —- R’ Meir says: [He is] a nazir. But the Sages say: He is not a nazir.

At first they used to say: There are three women who must be divorced, yet they take their kesubah: One who says: `'I am unclean to you”; [or] `'Heaven is between me and you,” [or] `'I am removed from all Jews.” They later retracted this, so that a wife should not set her eyes upon another [man] and behave immorally toward her husband. Rather, one who says: “I am unclean to you” must prove it; “Heaven is between me and you” —- they should plead with her; “I am removed from all Jews” —- he should revoke his share, so that she can continue in marital relations with him, but she is removed from [other] Jews.