פירוש על סנהדרין 114:8

Why [must] the verse state “no one”? [This refers to the verse, "None of you shall come] near anyone of his own flesh [to uncover nakedness: I am the LORD" (Leviticus 18:6).]

With regard to what halakha?-[With regard to what halakha] is [this gentile] judged according to the halakhot of the Jews?

That [this gentile] requires judgment by a Sanhedrin, and [that he is punished only if two] witnesses [testify concerning him,] and [only if he was issued] a forewarning [before his transgression.]-Similar to [the judicial process of] a Jew.

[Both] our judgment and their judgment are equal regarding this.