Commanding the Imam to be considerate of people

 318. Abu Mas´ud Al-Ansari narrated: A man came to the Messenger of Allah sallahu alayhi wa sallam and said: ´´I keep away from the morning congregational prayer on account of such and such (the Imam) because he prolongs us in the prayer.´´ I never saw the Prophet sallahu aayhi wa sallam angrier when giving an exhoration than he was on that day. He said: ´´O people, some of you scare people away, so whoever of you leads the people in prayer, let him bje brief; for behind him are the weak, the aged, and the people who have (urgent) needs to attend.´´