A man came and said, "O Messenger of Allah ﷺ! I keep away from the morning prayer because so-and-so (Imam) prolongs it too much." Messenger of Allah ﷺ became furious and I had never seen him more furious than he was on that day. The Prophet ﷺ said, "O people! Some of you make others dislike the prayer, so whoever becomes an Imam he should shorten the prayer, as behind him are the weak, the old and the needy.''
رَجُلٌ يَا رَسُولَ اللَّهِ إِنِّي لأَتَأَخَّرُ عَنِ الصَّلاَةِ فِي الْفَجْرِ مِمَّا يُطِيلُ بِنَا فُلاَنٌ فِيهَا فَغَضِبَ رَسُولُ اللَّهِ ﷺ مَا رَأَيْتُهُ غَضِبَ فِي مَوْضِعٍ كَانَ أَشَدَّ غَضَبًا مِنْهُ يَوْمَئِذٍ ثُمَّ قَالَ يَا أَيُّهَا النَّاسُ إِنَّ مِنْكُمْ مُنَفِّرِينَ فَمَنْ أَمَّ النَّاسَ فَلْيَتَجَوَّزْ فَإِنَّ خَلْفَهُ الضَّعِيفَ وَالْكَبِيرَ وَذَا الْحَاجَةِ