The borrower of a thing for use must not part with it to a third person without the consent of the lender.
§ 70-7-109, MCA
En. Sec. 2557, Civ. C. 1895; re-en. Sec. 5195, Rev. C. 1907; re-en. Sec. 7709, R.C.M. 1921; Cal. Civ. C. Sec. 1891; Field Civ. C. Sec. 955; re-en. Sec. 7709, R.C.M. 1935; R.C.M. 1947, 47-108.