The Book of the Commencement of the Prayer
11/22. Chapter:
Not saying "In the Name of Allah, The Most Gracious, The Most Merciful" Aloud
Sunan an-Nasai
أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ سَعِيدٍ أَبُو سَعِيدٍ الأَشَجُّ، قَالَ حَدَّثَنِي عُقْبَةُ بْنُ خَالِدٍ، قَالَ حَدَّثَنَا شُعْبَةُ، وَابْنُ أَبِي عَرُوبَةَ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، قَالَ صَلَّيْتُ خَلْفَ رَسُولِ اللَّهِ صلى الله عليه وسلم وَأَبِي بَكْرٍ وَعُمَرَ وَعُثْمَانَ - رضى الله عنهم - فَلَمْ أَسْمَعْ أَحَدًا مِنْهُمْ يَجْهَرُ بِـ { بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيمِ } .
It was narrated that Anas said: "I prayed behind the Messenger of Allah (ﷺ), Abu Bakr, Umar and Uthman, may Allah be pleased with them, and I did not hear any of them say out loud: In the Name of Allah, The Most Gracious, The Most Merciful."
Reference : Sunan an-Nasa'i 907In-book reference : Book 11, Hadith 32English translation : Vol. 2, Book 11, Hadith 908