Amr bin Yahya al-Qurashi (may Allah have mercy on him) said: I heard Mu'awiyah (may Allah be pleased with him) say: "The Messenger of Allah (peace and blessings be upon him) cursed those who split up sermons into small pieces as poetry is split."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16897