法華義疏 10.175

10.175

「以有事緣遠至餘國」下，第三、前佛去世譬。但受微化不得久住故往他方，如《涅槃》云「所應度者皆已度竟，餘未度者為作得度因緣」也。有事緣者此土感盡餘土緣興，佛化餘緣於彼緣為近，此土感息故稱為遠。又息此應彼故稱遠也。

From "Due to some business, he traveled far to another country" onward: third, the parable of the previous Buddha passing away. Having received only a subtle transformation, [sentient beings] could not sustain his long residence, hence he departed for another region; as the Nirvāṇa [Sūtra] says, "Those who were to be saved have all been saved, and for the rest who are not yet saved, the causes and conditions for their attaining salvation have been established." "Due to some business" means that the responsiveness in this land was exhausted, while the conditions in another land arose; the Buddha's transforming other conditions is proximate to those conditions, while responsiveness in this land ceased, hence it is called "far." Furthermore, ceasing here and responding there is also why it is called "far."