سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 920
The Book of the Commencement of the Prayer
Reciting Umm Al-Quran (Al Fatihah) behind the imam in rak'ahs where the imam recites out
أَخْبَرَنَا هِشَامُ بْنُ عَمَّارٍ، عَنْ صَدَقَةَ، عَنْ زَيْدِ بْنِ وَاقِدٍ، عَنْ حَرَامِ بْنِ حَكِيمٍ، عَنْ نَافِعِ بْنِ مَحْمُودِ بْنِ رَبِيعَةَ، عَنْ عُبَادَةَ بْنِ الصَّامِتِ، قَالَ صَلَّى بِنَا رَسُولُ اللَّهِ صلى الله عليه وسلم بَعْضَ الصَّلَوَاتِ الَّتِي يُجْهَرُ فِيهَا بِالْقِرَاءَةِ فَقَالَ لاَ يَقْرَأَنَّ أَحَدٌ مِنْكُمْ إِذَا جَهَرْتُ بِالْقِرَاءَةِ إِلاَّ بِأُمِّ الْقُرْآنِ .
It was narrated that Ubadah bin As-Samit said: "The Messenger of Allah (ﷺ) led us in one of the prayers in which the recitation is done out loud, and he said: 'None of you should recite when I recite out loud, apart from the Umm Al_quran (Al Fatihah).'"
Sunan an-Nasa'i, 920Sahih (Darussalam)