You are divorced if you do such-and-such, or if I do such-and-such.1 Should she—or I—carry out the act while coerced, insane, unconscious, or asleep, the divorce does not take effect; but if she—or I—does it out of forgetfulness or ignorance, it does.

The converse is treated in exactly the same way: “If you do not do such-and-such,” or “If I do not do such-and-such,” and then she fails to do it, or I fail to do it.2

Section3
A divorce is not established on the basis of doubt, whether about the pronouncement itself or about the condition to which it was tied.

Thus, if someone swears that he will not eat a date, for example, and the date later becomes mixed with other fruit, and he eats everything except one piece, he has not broken his oath.

If a man is uncertain how many divorces he has pronounced, he proceeds on the basis of what is certain—the lesser number.

And if he utters a word to his wife but is unsure whether it constitutes a divorce or a declaration of ẓihār, nothing is binding upon him.