• Makkhali (or Micchāditthika) Sutta

A man with perverted view leads many people away from righteousness and plants them in unrighteousness.

There is no other thing so greatly to be blamed as wrong view. Like a fish trap set at a river mouth is Makkhali, existing for the distress and destruction of many beings. He who urges adherence to a doctrine and discipline rightly expounded, he whom he thus urges, and he who, thus urged, walks therein accordingly, all alike beget much merit. A.i.33f.