俱舍論記 1.56

1.56

「或此依彼至故亦名藏」者，釋依彼故，所依名藏。或此論依彼對法，從彼對法論中引生，是彼對法所藏。而名藏者，以對法為藏名對法藏，有財釋也。故《正理論》云「藏或所依，猶如刀藏。」解云：刀藏謂刀鞘，是刀所依，以刀從彼藏中出故。此刀以鞘為藏，故名刀藏，況法可知。釋藏名中，理亦應有持業釋。論主不欲自取，推功歸本。

On "Or because this relies on that [...] hence it is also called a treasury": this explains "because it relies on that," where that which is relied upon is called a treasury. Or, this treatise relies on that Abhidharma, is drawn forth and produced from that Abhidharma treatise, and is what is contained in that Abhidharma. As for being named a treasury: having Abhidharma as its treasury, it is called Abhidharmakośa; this is a bahuvrīhi compound. Thus the *Nyāyānusāra-śāstra* says: "A treasury is alternatively a support, just like the sheath of a sword." The explanation says: The sword's treasury refers to the sword's sheath, which is what the sword relies upon, because the sword comes forth from that sheath. This sword has the sheath as its treasury, hence it is called a sword-treasury, and the analogy to the Dharma can be understood accordingly. Within the explanation of the name "treasury," in principle there should also be a karmadhāraya interpretation. The author of the treatise did not wish to claim it for himself, attributing the merit back to the source.