A man came to the Prophet ﷺ and said, "I sometimes stay away from the dawn prayer because of so-and-so, on account of how long he prolongs it for us."He said, "I never saw the Messenger of Allah ﷺ more severe in anger while delivering an admonition than he was that day."He said, "People, some of you drive others away. Whoever among you leads the people in prayer, let him keep it brief, for among them are the sick, the elderly, and those with pressing needs."
أتى رجل النبي ﷺ فقال: إني لأتأخر عن صلاة الغداة، من أجل فلان مما يطيل بنا، قال: فما رأيت رسول الله ﷺ قط أشد غضبا في موعظة منه يومئذ، قال: فقال: يا أيها الناس، إن منكم منفرين، فأيكم ما صلى بالناس فليتجوز، فإن فيهم المريض والكبير وذا الحاجة.
Bukhari narrated it in al-Adab (6110), and Muslim in al-Salah (466), both of them through the route of Ismail bin Abu Khalid, who said, Qays bin Abu Hazim told us, from Abu Masud, and he mentioned it.