What is the ruling on a husband uttering allusive divorce phrases to himself, or while imagining an argument with his wife, without recalling the intention of divorce, and does divorce thereby occur?

All the aforementioned whispers do not lead to divorce. Therefore, one must turn away from them, not pay attention to them, and beware of persisting in them due to their dire consequences. To get rid of these whispers, one can refer to the mentioned fatwas and the psychological counseling section.