SDCL § 55-1-55: Trust enforceable although not funded or without res, corpus, or assets.

A trust is valid and enforceable even though it may not be funded at a given time, or from time to time, or does not initially have any res or corpus or otherwise contain any asset of any nature. A trust is valid and enforceable even though its res is neither ascertainable nor identifiable at the time of the trust's creation. No trustee, trust protector, or trust advisor has any duty prior to the time a trust has a res, corpus, or any asset.