"Messenger of Allah prayed the Subh prayer, and he had difficulty with the recitation. When turned (after finishing) he said: 'I think that you are reciting behind your Imam?'" He said: "We said: 'Yes, Messenger of Allah, by Allah!' He said: 'Do not do that, except for Umm Al-Kitab, for there is no Salat for one who does not recite it.'" (Using translation from Tirmidhī 311)   

صَلَّى بِنَا رَسُولُ اللهِ ﷺ صَلَاةَ الْغَدَاةِ فَثَقُلَتْ عَلَيْهِ الْقِرَاءَةُ فَلَمَّا انْصَرَفَ قَالَ إِنِّي لَأَرَاكُمْ تَقْرَءُونَ وَرَاءَ إِمَامِكُمْ قُلْنَا نَعَمْ وَاللهِ يَا رَسُولَ اللهِ إِنَّا لَنَفْعَلُ هَذَا قَالَ فَلَا تَفْعَلُوا إِلَّا بِأُمِّ الْقُرْآنِ؛ فَإِنَّهُ لَا صَلَاةَ لِمَنْ لَمْ يَقْرَأْ بِهَا  

"Messenger of Allah prayed the Subh prayer, and he had difficulty with the recitation. When turned (after finishing) he said: 'I think that you are reciting behind your Imam?'" He said: "We said: 'Yes, Messenger of Allah, by Allah!' He said: 'Do not do that, except for Umm Al-Kitab, for there is no Salat for one who does not recite it.'" (Using translation from Tirmidhī 311)   

صَلَّى بِنَا رَسُولُ اللَّهِ ﷺ صَلَاةَ الصُّبْحِ فَثَقُلَتْ عَلَيْهِ الْقِرَاءَةُ فَلَمَّا انْصَرَفَ قَالَ «إِنِّي لَأَرَاكُمْ تَقْرَءُونَ وَرَاءَ إِمَامِكُمْ» قَالَ قُلْنَا أَجَلْ يَا رَسُولَ اللَّهِ هَذَا قَالَ «فَلَا تَفْعَلُوا إِلَّا بِأُمِّ الْكِتَابِ فَإِنَّهُ لَا صَلَاةَ لِمَنْ لَمْ يَقْرَأْ بِهَا»  

"Messenger of Allah prayed the Subh prayer, and he had difficulty with the recitation. When turned (after finishing) he said: 'I think that you are reciting behind your Imam?'" He said: "We said: 'Yes, Messenger of Allah, by Allah!' He said: 'Do not do that, except for Umm Al-Kitab, for there is no Salat for one who does not recite it.'" (Using translation from Tirmidhī 311)   

صَلَّى بِنَا رَسُولُ اللَّهِ ﷺ صَلَاةَ الصُّبْحِ فَثَقُلَتْ عَلَيْهِ الْقِرَاءَةُ فَلَمَّا انْصَرَفَ قَالَ «إِنِّي لَأَرَاكُمْ تَقْرَءُونَ وَرَاءَ إِمَامِكُمْ» قَالَ قُلْنَا أَجَلْ وَاللَّهِ يَا رَسُولَ اللَّهِ هَذًّا قَالَ «فَلَا تَفْعَلُوا إِلَّا بِأُمِّ الْكِتَابِ فَإِنَّهُ لَا صَلَاةَ لِمَنْ لَمْ يَقْرَأْ بِهَا»  

[Machine] And he said, "I see you praying behind your imam when he recites aloud?" We said, "Yes, by Allah, O Messenger of Allah." He said, "Do not do so except with the Ummul Quran, for verily there is no prayer for the one who does not recite it." Ali ibn Umar said, "This is a good chain of narration."  

وَقَالَ إِنِّي لَأَرَاكُمْ تَقْرَءُونَ خَلْفَ إِمَامِكُمْ إِذَا جَهَرَ؟ قُلْنَا أَجَلْ وَاللهِ يَا رَسُولَ اللهِ هَذَا قَالَ فَلَا تَفْعَلُوا إِلَّا بِأُمِّ الْقُرْآنِ فَإِنَّهُ لَا صَلَاةَ لِمَنْ لَمْ يَقْرَأْ بِهَا قَالَ عَلِيُّ بْنُ عُمَرَ هَذَا إِسْنَادٌ حَسَنٌ  

"هَلْ تَقْرَأُونَ خَلفِي شَيئًا مِنَ القُرآن؟ لا تَفْعَلُوا إِلا بِأُمِّ القُرآنِ سِرًّا في أَنْفُسِكُمْ".  

"لَعَلَّكُمْ تَقْرَءُونَ خَلْفَ إِمَامكُمْ؟ لَا تَفْعَلُوا إِلَّا بفَاتِحَةِ الْكتَابِ، فإِنَّهُ لَا صَلاةَ لِمَنْ لَم يَقْرَأ بِهَا".