The Messenger of Allah ﷺ did not prolong the sermon on Friday. It was only a few brief words.
حدثنا محمود بن خالد حدثنا الوليد أخبرني شيبان أبو معاوية عن سماك بن حرب
كان رسول الله ﷺ لا يطيل الموعظة يوم الجمعة إنما هن كلمات يسيرات
[Hasan] Bayhaqi related it, 30/207–208, from the hadith of Abu Dawud with this same wording, and Hakim graded it sahih according to the criterion of Muslim, 1/289. See also hadith 1101. Ibn Mulaqqin also graded it sahih in Tuhfat al-Muhtaj, 626.