瑜伽師地論略纂 8.70

8.70

論「或即如是，或異如是，或非如是」者，或即如是，謂火等以煖為相，火自性；或異如是，能燒是火之用也；或非如是，謂用炎赫等，是取之相而為火也。　又或即如是，謂火以煖為性；或異如是，謂用炎熾，是相異於火體為火；或非如是，謂非不以煖為火。

Regarding the treatise's statement, "either identical to it, different from it, or not so": "either identical to it" refers to fire and the like having warmth as its characteristic—the self-nature of fire; "different from it" refers to the function of fire being its ability to burn; "or not so" refers to taking the characteristic of blazing brightness and the like as being fire. Furthermore, "either identical to it" means that fire has warmth as its nature; "different from it" means taking blazing flame, which is a characteristic distinct from the substance of fire, as fire; "or not so" means that it is not that warmth is not fire.