What is the ruling regarding a man's statement to his wife: "Divorce be upon me that something will happen" – without specifying what that something is – when he intends by this statement to marry another woman, knowing that this is the first time he has sworn by divorce?

What you did is an oath of divorce. What you intended and the time you specified are considered therein. If you did not do what you swore to do within the time you specified, then your wife is divorced with one pronouncement. If you did not specify a time in your intention, then the divorce does not occur except at the last possible moment, i.e., upon your death, and one pronouncement is counted. If this pronouncement is not the third, then she inherits from you because she is within her revocable waiting period ('iddah). However, if it was the third, then she inherits nothing from you. Your intention for the oath of divorce to be a deterrent does not alter the ruling of the matter, according to the preponderant opinion.