an.5.95 Aṅguttara Nikāya (Numbered Discourses)

When endowed with five qualities, monks, in no long time a monk penetrates and intuits the Unshakeable. Which five? Here, monks, a monk is one who has attained discrimination of meanings, is one who has attained discrimination of principles, is one who as attained discrimination of language, is one who has attained discrimination of the illuminating qualities (of knowledge), and he reflects upon the mind as liberated. When endowed with these five qualities, monks, a monk in no long time penetrates and intuits the Unshakeable.