Ibn Majah

´It was narrated that Abu Mas’ud said:` “A man came to the Prophet (ﷺ) and said: ‘O Messenger of Allah! I stay behind and do not perform the morning prayer (in congregation) because of so-and-so, for he makes it too long for us.’ I never saw the Messenger of Allah (ﷺ) preaching with such anger as he did that day. He said; ‘O people! There are among you those who repel others. Whoever among you leads others in prayer, let him keep it short, for among them are those who are weak and elderly, and those who have pressing needs.’”

´It was narrated that Anas bin Malik said:` “The Messenger of Allah (ﷺ) used to make his prayer brief but perfect.”

´It was narrated that Jabir said:` “Mu’adh bin Jabal Al-Ansari led his companions in the ‘Isha’ prayer and he made it long. A man among us went away and prayed by himself. Mu’adh was told about that and he said: ‘He is a hypocrite.’ When the man heard about that, he went to the Messenger of Allah (ﷺ) and told him what Mu’adh had said to him. The Prophet (ﷺ) said: ‘Do you want to be a cause of Fitnah (trial, tribulation), O Mu’adh? When you lead the people in prayer, recite “By the sun and its brightness,”[Ash-Shams 91] and “Glorify the Name of your Lord the Most High,” [Al-A’la 87] and “By the night as it envelopes,” [Al-Lail 92] and “Recite in the Name of your Lord.’”[Al-‘Alaq]

´It was narrated that Mutarrif bin ‘Abdullah bin Shikhkhir said:` “I heard ‘Uthman bin Abul-‘As say: “The last thing that the Prophet (ﷺ) enjoined on me when he appointed me governor of Ta’if was that he said: “O ‘Uthman! Be tolerable in prayer and estimate the people based upon the weakest among them, for among them are the elderly, the young, the sick, those who live far from the mosque, and those who have pressing needs.”

´‘Uthman bin Abul-‘As narrated that the last thing the Messenger of Allah (ﷺ) enjoined on him was that he said:` “When you lead people, keep it short for them.”