Executor’s or administrator’s claim to be under oath

§ 20–1309. Executor’s or administrator’s claim to be under oathWhere a creditor is an executor or an administrator his claim may not be received, although vouched and approved as provided by this chapter, unless he makes oath, to be certified as provided by this chapter, “that it does not appear from any book or writing of his decedent that any part of the claim has been discharged except what (if any) is credited, and that to the best of the deponent’s knowledge and belief no part of the claim has been discharged and jio security or satisfaction given for it except what (if any) is credited.”.