Is it obligatory for preachers to warn against abandoning prayer and to publicly explain the rulings that follow from it?

Question:
May Allah reward you, Your Eminence, father. The questioner says: In our country, some men do not pray; they pray sometimes and sometimes they abandon the prayer. What is the ruling regarding their wives? And what is the duty of the preacher? Should he announce in the sermons and speeches that it is not permissible for them to remain with him?

Answer:
Yes, they should warn against abandoning prayer and explain that the one who abandons the prayer intentionally is a disbeliever according to the most precise scholars, even if he does not deny its obligation. As for if he denies its obligation, then he is a disbeliever according to all, and there is consensus on his disbelief. So his wife is not lawful for him, and it is not permissible for her to remain with him. However, separating them requires a judge to verify the claim. It is the judge's affair to determine whether he truly does not pray or if the accusation is false. This is necessary.
But you do not come with a general statement saying, "No." Rather, you say: The one who abandons the prayer while denying its obligation is a disbeliever according to all scholars, and the one who abandons it intentionally while acknowledging its obligation is a disbeliever according to the most precise scholars, and this is the correct view. Based on this, a woman does not remain with a man in general terms. As for specific individuals, a judge is required. Yes.