大方廣佛華嚴經疏 50.30

50.30

第八「復次」下大用無涯。謂正宗涅槃，而便分身無邊。窮於來際不動三昧者，究竟寂滅也。由寂無動故，無所不動耳。《涅槃》受純陀供處，大同於此，而佛數少，順機不同故。

Eighth, from "Furthermore..." onward, great function is boundless. This means that while centered on nirvāṇa, he then divides his bodies boundlessly. Exhausting the limits of the future, the unmoving samādhi is ultimate quiescence. Because it is quiescent and motionless, there is nowhere it does not move. Where the Nirvāṇa [Sūtra] receives the offering of Cunda is largely identical to this, but the number of Buddhas is fewer, due to differing compliances with capacities.