Prayer is worship that can be only learned from the Islamic texts so the Prophet's companions in detail learned it from the Prophet (ﷺ) then transmitted it to the nation just as they performed it with him. In this hadith, Anas ibn Malik confirmed that he prayed behind the Prophet (ﷺ), Abu Bakr, Omar, and Uthman, but never heard anyone of them reciting, "Bismillah-ir-Rahman-ir-Rahim" (In the name of Allah, the Most Gracious, the Most Merciful) whether before Surat Al-Fatihah or the surahs afterward. This may refer that they recited it quietly so none of the praying ones behind could hear it. It may also refer that they did not recite it but directly started reciting Surat Al-Fatihah. The preferred opinion is that a Muslim should secretly recite it before Surat Al-Fatihah and every sura afterward. In another narration in Sahih Muslim, Anas ibn Malek narrated, "They used to begin with 'All praise is due to Allah' and did not recite, 'In the name of Allah, the Most Gracious, the Most Merciful' neither before the first recitation nor the second one.” It was narrated that some Companions thought that loudly reciting "Bismillah-ir-Rahman-ir-Rahim" was better, including Abu Hurairah, Ibn Omar, Ibn Abbas, and Ibn Al-Zubayr..