an.4.71 Aṅguttara Nikāya (Numbered Discourses)

Effort

“Mendicants, when a mendicant has four things their practice is guaranteed, and they have laid the groundwork for ending the defilements.
What four?
It’s when a mendicant is ethical, learned, energetic, and wise.
When a mendicant has these four things their practice is guaranteed, and they have laid the groundwork for ending the defilements.”