What can I do to buy my wife a gold gift when I have sworn an oath of divorce upon her not to buy gold?

The phrase "by divorce" is explicit, and a divorce conditional upon it takes effect when the condition is met. If the speaker intended an absolute prohibition in the future, then divorce occurs upon the purchase of gold. However, if he intended a prohibition for a specific time, then divorce occurs if the purchase takes place within that time; otherwise, it does not. This is the view of the majority of scholars.