59-5-1. Warranty of authority.
One who assumes to act as an agent thereby warrants to all who deal with him in that capacity, that he has the authority which he assumes.
Source: CivC 1877, §1376; CL 1887, §3999; RCivC 1903, §1695; RC 1919, §1277; SDC 1939, §3.0401.