法華義疏 2.403

2.403

From "At that time there was a bodhisattva named Guṇagupta (Virtue Treasury)" is the second: clarifying the conferment of prophecy. Since the great assembly had heard of the nirvāṇa, they all gave rise to yearning and sorrow. Now, wishing to quell their sorrowful feelings, he next clarified the conferment of prophecy: although the former Buddha departs, the subsequent Buddha continues to arise, so there is no need for sorrow.