รุกขสูตร ที่ ๔
TIPITAKA Volume 19 : PALI ROMAN Sutta Pitaka Vol 11 : Sutta. Saṃ. Ma.
[1079] Seyyathāpi bhikkhave ye keci supaṇṇānaṃ rukkhā koṭasimbalī 1- tesaṃ aggamakkhāyati . evameva kho bhikkhave ye keci bodhipakkhiyā dhammā paññindriyaṃ tesaṃ aggamakkhāyati yadidaṃ bodhāya.