Ekottaragama (Sanskrit fragments) 12.1.5

12.1.5

爾時，世尊告諸比丘：「有一入道，淨眾生行，除去愁憂，無有諸惱，得大智慧，成泥洹證。所謂當滅五蓋，思惟四意止。云何名為一入？所謂專一心，是謂一入。云何為道？所謂賢聖八品道，一名正見，二名正治，三名正業，四名正命，五名正方便，六名正語，七名正念，八名正定，是謂名道，是謂一入道。

It was then that the Bhagavān addressed the monks, “There’s a single-entry path that purifies the conduct of sentient beings and rids them of grief. When they lack afflictions, they attain great wisdom and achieve realization of nirvāṇa. That is to say, they cease the five hindrances and contemplate four abodes of mindfulness.

“What’s called the single entry? It refers to focusing the mind. This is called the single entry. What is the path? It refers to the noble eightfold path. First is right view, second is right control, third is right speech, fourth is right action, fifth is right livelihood, sixth is right method, seventh is right mindfulness, and eighth is right samādhi. This is called the path. Together, they are called the single-entry path.