Responsa על משלי 1:15

They responded: "My son, do not walk on a path with them" (Proverbs 1:15), for every transgression is loathsome, and this transgression is criminal.

Regarding the second matter, they responded: "Do not walk on a path with them" (Proverbs 1:15), for even though it is not forbidden, it is not right to breach the fences of tradition.