大般涅槃經集解 67.100

67.100

案僧亮曰：釋煖法之能。暫出還沒者，若遇惡友，住內凡夫，沒在人天，不速成果也。僧宗曰：從此分解，取第四人也，第三人必不退。而言二種者，此言未得煖。在四念處時，遇善友則進修入道；若遇惡友，尚不得煖，況聖果耶。寶亮曰；不異前釋。遇善友成住人，遇惡友則還沒也。

Sengliang comments: This explains the capability of the dharma of heat. Regarding 'temporarily emerging and sinking back': if one meets a bad friend, one remains an internal ordinary person, sinking in the realms of humans and devas, and does not quickly realize the fruit. Sengzong comments: From this distinction onwards, this refers to the fourth person; the third person will definitely not regress. As for speaking of 'two kinds', this refers to when one has not yet attained heat. While residing in the four stations of mindfulness, if one encounters a good friend, one advances in practice and enters the path; if one meets an evil friend, one does not even attain heat, let alone the noble fruit! Baoliang comments: This is not different from the previous explanation. One who meets a good friend becomes an established person; one who meets an evil friend then sinks back.