大般涅槃經義記 2.113

2.113

第五段中，外道自忖身無道機名為「無器」，此乃就其根性中語。依法修善名為「得乳」，無有道機錄彼善行名「無安處」，外道唯有世俗善機收錄彼善，故言相謂「唯有皮囊可以盛之」。不能觀察破相求實，是故說之「不知攢搖」，正觀名攢，傍推曰搖。世善叵生名「漿難得」，道果絕分名「況生蘇」。

In the fifth section, the non-Buddhists considering themselves to lack the capacity for the Path is called "having no vessel"; this is spoken in terms of their disposition. Cultivating wholesome deeds according to the Dharma is called "obtaining milk"; lacking the capacity for the Path to retain those good deeds is called "having no place of safe-keeping"; and non-Buddhists possessing only the worldly capacity for good to retain that wholesome deed is why they are said to tell one another, "There is only a leather bag that can contain it." Being unable to observe, destroy marks, and seek the real is therefore described as "not knowing how to churn"; correct contemplation is called churning, and lateral deduction is called shaking. That worldly good cannot arise is called "sour milk is difficult to obtain"; that they are entirely cut off from the fruit of the Path is called "much less butter."