Anas bin Malik reported,
I prayed with the Prophet ﷺ and with Abu Bakr and Umar 
, and they began with "In the name of Allah, the Most Gracious, the Most Merciful" [Fatihah 1:1].
Nasai 904
Sahihأخبرنا عبد الله بن محمد بن عبد الرحمن الزهري قال حدثنا سفيان عن أيوب عن قتادة
عن أنس قال
صليت مع النبي ﷺ ومع أبي بكر وعمر رضي الله عنهما فافتتحوا ب {بسم الله الرحمن الرحيم}
النسائي 904صحيح
Contents
Reference
Commentary
Ayat
Collection
Sunan Nasai Sughra
Book
Commencement
Chapter
Beginning with Fatihah before the surah
Numbering
Darussalam 904
Details
Collection
Sunan Nasai Sughra
Book
Commencement
Chapter
Beginning with Fatihah before the surah
Numbering
Darussalam 904
Ayat
Reference
Commentary
Darussalam
Sourcing, [sahih] Ibn Majah reported it in "Establishment of Prayers," chapter on opening the recitation, no. 813, from the hadith of Sufyan bin Uyayna, with this wording. It is also in al-Kubra, no. 976. See the previous hadith.* Ayub is Ibn Abu Tamima al-Sakhtiyani.