From Muhammad, the Messenger of Allah ﷺ, several hadiths were mentioned, among them that the Messenger of Allah ﷺ said, "When one of you leads the people in prayer, let him keep it short, for among them are the elderly and the weak. But when he prays alone, let him prolong his prayer as much as he wishes."
حدثنا ابن رافع حدثنا عبد الرزاق حدثنا معمر عن همام بن منبه قال هذا ما حدثنا
عن محمد رسول الله ﷺ فذكر أحاديث منها وقال رسول الله ﷺ إذا ما قام أحدكم للناس فليخفف الصلاة فإن فيهم الكبير وفيهم الضعيف وإذا قام وحده فليطل صلاته ما شاء