Saṁyutta Nikāya 55.62 7. Mahāpaññavagga Mahāpaññāsutta

“Cattārome, bhikkhave, dhammā bhāvitā bahulīkatā mahāpaññatāya saṁvattanti.

“Mendicants, when four things are developed and cultivated they lead to great wisdom.

Katame cattāro?

What four?

Sappurisasaṁsevo, saddhammassavanaṁ, yonisomanasikāro, dhammānudhammappaṭipatti—

Associating with true persons, listening to the true teaching, rational application of mind, and practicing in line with the teaching.

ime kho, bhikkhave, cattāro dhammā bhāvitā bahulīkatā mahāpaññatāya saṁvattantī”ti.

When these four things are developed and cultivated they lead to great wisdom.”

Paṭhamaṁ.