Sahih Muslim 465b

"Mu'adh bin Jabal led his companions in praying Isha' and he made it lengthy. A man left, and Mu'adh was told about that, and he said: 'He is a hypocrite.' When news of that reached the man, he went to the Prophet (ﷺ) and told him what Mu'adh had said. The Prophet (ﷺ) said to him: 'Do you want to…

"‏ أَتُرِيدُ أَنْ تَكُونَ فَتَّانًا يَا مُعَاذُ إِذَا أَمَمْتَ النَّاسَ فَاقْرَأْ بِالشَّمْسِ وَضُحَاهَا وَ ‏‏{‏ سَبِّحِ اسْمَ رَبِّكَ الأَعْلَى ‏}‏ وَ ‏‏{‏ وَاللَّيْلِ إِذَا يَغْشَى ‏}‏ وَ ‏‏{‏ اقْرَأْ بِاسْمِ رَبِّكَ…

Narrated by Jābir ibn ‘Abdullāh

“Recite ‘By the sun and its brightness,’[Al-Shams (91)] ‘Glorify the Name of your Lord, the Most High,’ [Al-A’la (87)] ‘By the night as it envelops,’ [Al-Lail (92)] or, ‘Read! In the Name of your Lord Who has created.’” [Al-‘Alaq (96)]

"‏ اقْرَأْ بِالشَّمْسِ وَضُحَاهَا وَسَبِّحِ اسْمَ رَبِّكَ الأَعْلَى وَاللَّيْلِ إِذَا يَغْشَى وَاقْرَأْ بِسْمِ رَبِّكَ ‏"

Narrated by Jābir ibn ‘Abdullāh

“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…

"‏ أَتُرِيدُ أَنْ تَكُونَ فَتَّانًا يَا مُعَاذُ إِذَا صَلَّيْتَ بِالنَّاسِ فَاقْرَأْ بِالشَّمْسِ وَضُحَاهَا وَسَبِّحِ اسْمَ رَبِّكَ الأَعْلَى وَاللَّيْلِ إِذَا يَغْشَى وَاقْرَأْ بِاسْمِ رَبِّكَ ‏"

Narrated by Jābir ibn ‘Abdullāh

Mu'adh bin Jabal (RA) led his companions in the al-'Isha (night prayer) and prolonged it for them. Upon this the Prophet (ﷺ) said to him, "O Mu'adh, do you want to become a Fattan? When you lead people in prayers, recite ash-Shamsi wa duhaha (Surat 91), Sabbihisma Rabbikal-A'la (Surat 87), Iqra'…

"أَتُرِيدُ أَنْ تَكُونَ يَا مُعَاذُ فَتَّانًا? إِذَا أَمَمْتَ اَلنَّاسَ فَاقْرَأْ: بِالشَّمْسِ وَضُحَاهَا, وَ: سَبِّحْ اِسْمَ رَبِّكَ اَلْأَعْلَى, وَ: اِقْرَأْ بِاسْمِ رَبِّكَ, وَاللَّيْلِ إِذَا يَغْشَى"

Narrated by Jābir ibn ‘Abdullāh

A man came to the Prophet (ﷺ) and said: "I join the morning Salat late because of so-and-so who leads it and prolongs it." (Abu Mas'ud said): I have never seen the Prophet (ﷺ) so angry while giving a speech as he was on that day. He (ﷺ) said, "Some of you create hatred among the people against…

وعن أبى مسعود عقبة بن عمرو البدرى رضي الله عنه قال‏:‏ جاء رجل إلى النبى صلى الله عليه وسلم، فقال‏:‏ إنى لأتأخر عن صلاة الصبح من أجل فلان مما يطيل بنا‏!‏ فما رأيت النبى صلى الله عليه وسلم غضب في موعظة قط أشد مما غضب…

Narrated by Abu Mas‘ūd al-Badrī + 9 other versions

Messenger of Allah (ﷺ) said, "When one of you leads the Salat, he should not prolong it because the congregation includes those who are feeble, ill or old". One version adds: "those who have to attend to work") While offering prayers alone, you may pray as long as you like". [Al-Bukhari and Muslim].

وعن أبي هريرة رضي الله عنه ، أن رسول الله صلى الله عليه وسلم قال‏:‏ ‏"‏إذا صلى أحدكم للناس، فليخفف، فإن فيهم الضعيف والسقيم والكبير‏.‏ وإذا صلى لنفسه فليطول ما شاء‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏ ‏.‏ (10)

Narrated by Abu Hurayrah + 6 other versions

The Prophet (ﷺ) said: "When one of you leads the people in prayer he should be brief, for among them are the young and the old, the weak and those who have needs to attend to. But if he prays by himself he may pray as he wishes." [Agreed upon].

وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- أَنَّ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-قَالَ: { إِذَا أَمَّ أَحَدُكُمْ اَلنَّاسَ فَلْيُخَفِّفْ, فَإِنَّ فِيهِمْ اَلصَّغِيرَ وَالْكَبِيرَ وَالضَّعِيفَ وَذَا اَلْحَاجَةِ…

Narrated by Abu Hurayrah + 2 other versions

Mu`adh bin Jabal used to pray with the Prophet (ﷺ) and then go to lead his people in prayer. Once he led the people in prayer and recited Surat-al-Baqara. A man left (the row of the praying people) and offered (light) prayer (separately) and went away. When Mu`adh came to know about it, he said…

كَانَ يُصَلِّي مَعَ النَّبِيِّ صلى الله عليه وسلم ثُمَّ يَأْتِي قَوْمَهُ فَيُصَلِّي بِهِمُ الصَّلاَةَ، فَقَرَأَ بِهِمُ الْبَقَرَةَ ـ قَالَ ـ فَتَجَوَّزَ رَجُلٌ فَصَلَّى صَلاَةً خَفِيفَةً، فَبَلَغَ ذَلِكَ مُعَاذًا…

Narrated by Jābir ibn ‘Abdullāh + 7 other versions

O people, you cause aversion to others. Whoever leads people in prayer should make it brief, for among them are the sick, the weak, and those with needs to be fulfilled

Abu Mas‘ūd al-Ansāri (may Allah be pleased with him) reported: A man said: "O Messenger of Allah, I would almost fail to attend the prayer because so-and-so prolongs it when he leads us." I never saw the Prophet (may Allah's peace and blessings be upon him) more angry in giving admonition than he…

أَيُّهَا النَّاسُ، إِنَّكُمْ مُنَفِّرُونَ، فَمَنْ صَلَّى بِالنَّاسِ فَلْيُخَفِّفْ، فَإِنَّ فِيهِمُ الْمَرِيضَ وَالضَّعِيفَ وَذَا الْحَاجَةِ ‏"

Narrated by Abu Mas‘ūd al-Badrī Explained

“When you lead people, keep it short for them.”

"‏ إِذَا أَمَمْتَ قَوْمًا فَأَخِفَّ بِهِمْ ‏"

Narrated by Uthmān ibn Abu al-‘ās + 3 other versions