三彌勒經疏 1.99

1.99

經曰「其身舍利以」下，第五舍利形。釋迦破碎分舍利，彌勒全身舍利。不動不搖者，表佛法身本無生滅事也。

From the text of the sūtra where it says, "The relics of his body" onwards, this is the fifth [section], [explaining] the form of his relics. Śākyamuni's [body] was broken up and distributed as relics; Maitreya's is a whole-body relic. That it is "unmoving and unshaking" signifies the fact that the Buddha's dharmakāya fundamentally has no arising or cessation.