法華論疏 2.245

2.245

第四堪成就者，上明利根之人已解佛語不須復說，今明堪受化人猶未得解故應為說。初釋。

As for the fourth, 'perfection of capability': the above clarified that people of sharp faculties have already understood the Buddha's words and there is no need to speak further; here it clarifies that people capable of receiving transformation have not yet attained understanding, so he should speak for them. First is the explanation.