Saṃyutta Nikāya 55
7. Mahāpaññavagga
74. Nibbedhikapaññāsutta
“… Nibbedhikapaññatāya saṃvattanti. Katame cattāro? Sappurisasaṃsevo, saddhammassavanaṃ, yonisomanasikāro, dhammānudhammappaṭipatti— ime kho, bhikkhave, cattāro dhammā bhāvitā bahulīkatā nibbedhikapaññatāya saṃvattantī”ti.
Terasamaṃ.
Mahāpaññavaggo sattamo.
Mahā puthu vipula gambhīraṃ,
Appamatta bhūri bāhullaṃ;
Sīgha lahu hāsa javana,
Tikkha nibbedhikāya cāti.
Sotāpattisaṃyuttaṃ ekādasamaṃ.