法華義疏 11.171

11.171

「於未來世」下，第二、勸下知根性。凡有二句：一者、明有大心人宜授以實說；二者、若有眾生不信一乘當為說三乘教。「汝等若能」下，第三、若能上學佛二德、下知兩機，則通法利人，謂報佛恩也。

From "In future ages" downward is the second part, urging them to know the capacities below. There are altogether two lines: first, explaining that for people with great aspirations, one should confer the real teaching; second, if there are sentient beings who do not believe in the ekayāna, one should teach them the triyāna doctrine. From "If you are able" downward is the third part: if one can emulate the Buddha's two virtues above and know the two capacities below, then one propagates the Dharma and benefits people, which is called repaying the Buddha's kindness.