When the Messenger of Allah ﷺ delivered a sermon, his eyes would redden, his voice would rise, and his anger would intensify, as though he were a warner alerting an army of an attack at dawn or dusk. He would say, "I have been sent and the Hour is like these two," joining his index and middle fingers together.He would say, "To proceed, the best of speech is the Book of Allah, the best guidance is the guidance of Muhammad, the worst of affairs are newly invented matters, and every innovation is misguidance."He also used to say, "Whoever leaves behind wealth, it belongs to his family. Whoever leaves behind a debt or dependents in need, their care falls upon me and to me."
حدثنا سويد بن سعيد وأحمد بن ثابت الجحدري قالا حدثنا عبد الوهاب الثقفي عن جعفر بن محمد عن أبيه
كان رسول الله ﷺ إذا خطب احمرت عيناه وعلا صوته واشتد غضبه كأنه منذر جيش يقول صبحكم مساكم ويقول بعثت أنا والساعة كهاتين ويقرن بين إصبعيه السبابة والوسطى ويقول أما بعد فإن خير الأمور كتاب الله وخير الهدي هدي محمد وشر الأمور محدثاتها وكل بدعة ضلالة وكان يقول من ترك مالا فلأهله ومن ترك دينا أو ضياعا فعلي وإلي
Muslim narrated it in Sahih Muslim, Jumuah, Chapter on shortening the prayer and sermon, no. 867, from the hadith of Abdul-Wahhab through this route.