大般涅槃經義記 4.139

4.139

下明不能利益闡提，先法、後喻。自下四喻重成前四，從後向前次第成之。初之一喻成前第四，明一闡提無受藥器故藥不治，先喻、後合。其次一喻成前第三，明一闡提惡心難破故不可清，先喻、後合。其次二喻其顯一義，成上第二，明一闡提善根難生。於中先明餘人善根可以還生，不同闡提，先喻、後合。「如佉陀」下明一闡提善根叵生，不同餘人，先喻、後合。末後兩喻共顯一義，成上第一，明闡提人無受法心，先喻、次合、後喻重顯。

Below, it explains the inability to benefit icchantikas: first the Dharma, then the parables. From here on, four parables reinforce the previous four, reinforcing them successively from the last to the first. The first parable reinforces the fourth above, explaining that because the icchantika lacks the vessel to receive medicine, the medicine does not cure: first the parable, then the combination. The next parable reinforces the third above, explaining that because the icchantika's evil mind is difficult to break, it cannot be purified: first the parable, then the combination. The next two parables together reveal one meaning, reinforcing the second above, explaining that the icchantika's roots of goodness are difficult to generate. Therein, it first explains that other people's roots of goodness can grow again, unlike the icchantika: first the parable, then the combination. From "Like the khadira" onward, it explains that an icchantika's roots of goodness cannot possibly grow, unlike other people: first the parable, then the combination. The final two parables together reveal one meaning, reinforcing the first above, explaining that the icchantika lacks the mind to receive the Dharma: first the parable, next the combination, then another parable to reinforce and clarify.