an.5.95 Aṅguttara Nikāya (Numbered Discourses)

Unshakable

“Mendicants, a mendicant who has five things will soon penetrate the unshakable.
What five?
It’s when a mendicant has attained the textual analysis of meaning, text, terminology, and eloquence, and they review the extent of their mind’s freedom.
A mendicant who has these five things will soon penetrate the unshakable.”