Gone beyond all things, kind, eloquent, they’ve given up birth and death, and have completed the spiritual journey.
That’s who I call a senior, who has no defilements. With the ending of defilements, a mendicant is declared a ‘senior’.”
Numbered Discourses 4.23 3. At Uruvelā The World
“Mendicants, the world has been understood by the Realized One; and he is detached from the world. The origin of the world has been understood by the Realized One; and he has given up the origin of the world. The cessation of the world has been understood by the Realized One; and he has realized the cessation of the world. The practice that leads to the cessation of the world has been understood by the Realized One; and he has developed the practice that leads to the cessation of the world.
In this world—with its gods, Māras, and divinities, this population with its ascetics and brahmins, its gods and humans—whatever is seen, heard, thought, known, attained, sought, and explored by the mind, all that has been understood by the Realized One. That’s why he’s called the ‘Realized One’.
From the night when the Realized One awakens to the supreme perfect awakening until the night he becomes fully extinguished—in the element of extinguishment with no residue—everything he speaks, says, and expresses is real, not otherwise. That’s why he’s called the ‘Realized One’.
The Realized One does as he says, and says as he does. Since this is so, that’s why he’s called the ‘Realized One’.