(22) باب تَرْكِ الْجَهْرِ 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 907
In-book reference: Book 11, Hadith 32
English translation: Vol. 2, Book 11, Hadith 908