Dutiyakhamasutta
“Catasso imā, bhikkhave, paṭipadā. Katamā catasso? Akkhamā paṭipadā, khamā paṭipadā, damā paṭipadā, samā paṭipadā.
Patience (2nd)
“Mendicants, there are four ways of practice. What four? Impatient practice, patient practice, taming practice, and calming practice.