法華義疏 12.152

12.152

「佛說是下」第四、雙益。初列得益之人，「皆發無等等」下，第二、正明得益。佛道無等，唯佛與佛等，故名此道為無等等。所以名佛為無等等，復云無等等者，佛具二義：一、下有所異；二、上有所齊。下有所異名為無等，上有所齊云無等等。以佛名無等等，今發佛心故云發無等等心也。

From "When the Buddha preached this" onward is the fourth [section], the mutual benefit. First, listing the people who obtained benefit; from "all generated the [mind directed to] the peerless" onward, second, directly clarifying the obtaining of benefit. The Buddha path has no equal; only Buddhas are equal to Buddhas, hence this path is named "the peerless." As to why the Buddha is called "the peerless" and further called "equal to the peerless," the Buddha possesses two meanings: first, downwardly there is difference; second, upwardly there is parity. Downward difference is called "peerless"; upward parity is called "equal to the peerless." Because the Buddha is named "equal to the peerless," now generating the Buddha mind is called generating the mind directed to the peerless.