6.
The Discourse on the Peak Again
16.
"There are, monks, these five powers.
Which five?
The power of faith, the power of energy, the power of mindfulness, the power of concentration, the power of wisdom -
these, monks, are the five powers.
Of these five powers, monks, this is the highest, this is the binding factor, this is the unifying factor, that is to say, the power of wisdom.
Just as, monks, of a pinnacle chamber, this is the highest, this is the binding factor, this is the unifying factor, that is to say, the pinnacle.
So too, monks, of these five powers, this is the highest, this is the binding factor, this is the unifying factor, that is to say, the power of wisdom."
The sixth.