What is the ruling of Islamic law on a man who said to his angry wife, "If you cross the threshold of the house door, you are divorced by three," then the wife opened the door and reached the building's staircase, then returned to the apartment?

If the husband intended the apartment door by his statement: "If you cross the threshold of the house, you are divorced with a triple divorce," and the wife crossed the door, then according to the majority of scholars, the divorce takes effect, and it is an irrevocable major divorce. However, if he intended the building's main entrance, the divorce does not occur. Some scholars, including Sheikh al-Islam Ibn Taymiyyah, are of the view that a conditional divorce does not take effect if the husband merely intended to prevent or threaten, and an expiation for breaking an oath becomes due. They also hold that a triple divorce uttered in a single declaration counts as a single divorce. It is advisable to refer to the Sharia courts to rule on such matters.