法華義疏 12.186

12.186

有四種因得持：一、不習愛欲；二、不嫉妬；三、等施無悔；四、樂法。

There are four causes by which one attains retention: first, not habituating sensual desire; second, not being jealous; third, giving impartially without regret; fourth, delighting in the Dharma.