10.
The Second Discourse on the Arisen
191.
"Monks, these seven factors of enlightenment, when developed and cultivated, arise though unarisen, not apart from the Fortunate One's discipline.
Which seven?
The enlightenment factor of mindfulness, etc.
the enlightenment factor of equanimity -
these, monks, are the seven factors of enlightenment which, when developed and cultivated, arise though unarisen, not apart from the Fortunate One's discipline."
The tenth.