20-4-1. Obligation extinguished by full performance.
Full performance of an obligation, by the party whose duty it is to perform it, or by any other person on his behalf, and with his assent, if accepted by the creditor, extinguishes it.
Source: CivC 1877, §827; CL 1887, §3451; RCivC 1903, §1144; RC 1919, §751; SDC 1939, §47.0201.