What is the Shar'i ruling regarding a husband's statement to his wife three times: "By triple divorce upon you, every time you become lawful, you become unlawful, that I did not buy you cigarettes," and what is the solution for the continuous problems between spouses concerning the wife's repeated demands?

You must strive to reform your wife by advising her and clarifying the Shariah ruling on smoking and its health harms to her and your children, using a calm and convincing approach, and utilizing religious tapes and booklets that explain the dangers of smoking. As for your oath, "By triple divorce, every time you become lawful, you become unlawful, that I will not buy you cigarettes," you are obligated to fulfill it, otherwise your wife will be permanently forbidden to you, because "every time" necessitates repetition. Note that it is not permissible for you to buy her cigarettes at all, as it constitutes aiding in sin and transgression.