Where the title to the homestead is in the husband, and the wife voluntarily abandons him for a period of one (1) year or from any cause takes up her residence out of the state, he may convey, mortgage or make any contract relating thereto without being joined therein by her; and where the title to the homestead is in the wife and the husband voluntarily abandons her, or from any cause takes up his residence out of the state for a period of one (1) year she may convey, mortgage or make any contract relating thereto without being joined therein by him.
Okla. Stat. tit. 16, § 6