維摩經略疏 5.123

5.123

第四意者，如《法界性論》云「若利根人於摩訶般若入法界，若中根人於法華入法界，下根於涅槃入法界。」以呵生蘇為熟蘇，故至般若成醍醐，得入法界。以呵酪為生蘇，故於般若為熟蘇，於法華成醍醐，得入法界。以呵乳成酪，至大品成生蘇，至法華成熟蘇，至涅槃成醍醐，入法界。若不如此，則不能令上中下根皆入法界，則為入三經之哢胤也。

As for the fourth meaning: As the Fǎjièxìng lùn states: "If one is of sharp faculties, one enters the dharmadhātu in Mahāprajñā; if one is of middling faculties, one enters the dharmadhātu in the Lotus Sūtra; those of lower faculties enter the dharmadhātu in the Nirvāṇa Sūtra." By rebuking raw butter into ripened butter, upon reaching prajñā it becomes ghee and they are able to enter the dharmadhātu. By rebuking curd into raw butter, it becomes ripened butter in prajñā, and in the Lotus Sūtra it becomes ghee and they are able to enter the dharmadhātu. By rebuking milk into curd, upon reaching the Dàpǐn it becomes raw butter, in the Lotus Sūtra it becomes ripened butter, and in the Nirvāṇa Sūtra it becomes ghee, and they enter the dharmadhātu. If not for this, one would be unable to cause those of higher, middling, and lower faculties to all enter the dharmadhātu; thus this serves as an overture for entering the three sūtras.