Is the obligation of *Ilaa'* nullified if the husband fulfills the act while insane, even without incurring expiation?

Primary text

Yes, the obligation of *Ilaa'* is nullified because he has fulfilled her right, just as if he had intentionally broken the oath. The nullification of *Ilaa'* does not necessitate the invalidity of the oath itself, as seen when someone swears not to have intercourse with a foreign woman and subsequently marries her.