Does divorce take effect with the words "You are divorced, divorced, divorced," accompanied by the mention of the wife's name, if said imaginatively and not in the wife's presence?

"Thoughts that cross one's mind have no effect, and no divorce is necessitated by them. The same applies if one utters them, as it is a promise of divorce, and one is not obligated to fulfill it. Similarly, one should not pay attention to dreams during sleep or to whispers (waswas); for these are from Satan."