an.2.52 Aṅguttara Nikāya (Numbered Discourses)
The Chapter on Persons
52“Two people, mendicants, arise in the world for the welfare and happiness of the people, for the benefit, welfare, and happiness of gods and humans.
What two?
The Realized One, the perfected one, the fully awakened Buddha; and the wheel-turning monarch.
These two people arise in the world for the welfare and happiness of the people, for the benefit, welfare, and happiness of gods and humans.”