What is the ruling on a husband telling his wife: "If she greets you, do not return the greeting, and if you do return it, do not enter your house," and what is the ruling on his saying thereafter: "Did I really swear an oath of divorce upon her?"?

The words spoken by the man to his wife are not an explicit divorce. His statement that he did not intend divorce is what counts, because he knows best his own intention. Therefore, these words do not constitute a divorce, even if the wife did what her husband had forbidden her from doing.