大般涅槃經義記 7.161

7.161

就自為中，文亦有四：一念自己是出家人不應為惡；二「人身難得如優曇」下明其善時難逢易失，不應起惡；三從「我名沙門」已下顯前第一，明己高人，不應為惡；四「世有六處難可值」下顯前第二，明逢善時不應為惡。

Regarding for one's own sake, the text also has four parts: first, reflecting that oneself is a renunciant who should not commit evil; second, from 'Human existence is hard to obtain, like the udumbara...' onward, clarifying that the good time is difficult to meet and easy to lose, so one should not give rise to evil; third, from 'I am called a śramaṇa' onward, revealing the earlier first point, clarifying that oneself is an exalted person who should not commit evil; fourth, from 'There are six things in the world difficult to encounter...' onward, revealing the earlier second point, clarifying that having met the good time, one should not commit evil.