If someone says to his wife, "You are unlawful to me." he must make an expiation (for his oath). Ibn ʿAbbas added: There is for you in Messenger of Allah ﷺ, an excellent example to follow.
وَقَالَ ابْنُ عَبَّاسٍ {لَقَدْ كَانَ لَكُمْ فِي رَسُولِ اللَّهِ إِسْوَةٌ حَسَنَةٌ}