Jabir bin Samurah said: The Messenger of Allah ﷺ used to deliver the sermon standing, then he would sit down, then stand and preach standing. If anyone tells you he preached sitting, he is lying. I swear by Allah that I offered along with more than two thousand prayers.
Hadith Referenceسنن ابي داود / تفرح أبواب الجمعة / 1093
Hadith Gradingالألبانی:حسن | زبیر علی زئی:صحيح مسلم (862)
Jabir bin Samurah said: I saw the Prophet ﷺ would deliver the sermon standing, then sit down without saying anything. The narrator then reported the tradition in full.
Hadith Referenceسنن ابي داود / تفرح أبواب الجمعة / 1095
Hadith Gradingالألبانی:حسن | زبیر علی زئی:إسناده صحيح