大般涅槃經義記 9.257

9.257

自下第三重辨有無。「或有佛性，一闡提有，善根無」者，有不善性，無其善性。佛性緣起為不善陰，故不善陰名為佛性，闡提有此。「或有佛性，善根人有，闡提無」者，初地已上名善根人，通則種性已上菩薩斯名善人，彼有善性、無不善性。「或有佛性二人俱有」，俱有理性。「或性二俱無」，俱無果性。

From here below is the third [part], re-analyzing presence and absence. As for "there is a buddha-nature that icchantikas have and those with good roots lack," they have an unwholesome nature, but lack the wholesome nature. The conditioned arising of buddha-nature constitutes the unwholesome aggregates; therefore the unwholesome aggregates are termed buddha-nature, and icchantikas have this. As for "there is a buddha-nature that persons with good roots have and icchantikas lack," those from the first ground upward are called persons with good roots; speaking generally, bodhisattvas from the lineage nature upward are called good persons; they have the wholesome nature and lack the unwholesome nature. As for "there is a buddha-nature that both persons possess," both possess the nature of principle. As for "there is a buddha-nature that neither possesses," neither possesses the nature of fruition.