金光明最勝王經疏 2.205

2.205

贊曰：明真實法身具足四德，故無舍利。亦分為四：此初，明常實德不與無常虛妄同處，故無舍利。又無常觀不得常德，設若得者可求舍利，既不可得故不可求。

The commentary states: This clarifies that the real dharmakāya is fully endowed with the four virtues, and therefore has no relics. It is also divided into four parts: this first part clarifies that the virtue of permanence and reality does not share the same place with impermanent falsity; hence there are no relics. Moreover, contemplation of impermanence does not attain the virtue of permanence; if it could attain it, one could seek relics, but since it cannot be attained, they cannot be sought.