Ibn Abdullah bin Mughaffal narrates from his father (Sayyiduna Abdullah bin Mughaffal (may Allah be pleased with him)): I prayed behind the Messenger of Allah (peace and blessings be upon him), Sayyiduna Abu Bakr and Sayyiduna Umar (may Allah be pleased with them both), but I did not hear any of them reciting 'In the name of Allah, the Most Gracious, the Most Merciful' [Surah al-Fatihah: 1].
Al-Jurayri narrated it in the same way from Abu Na'amah Qays bin Abayah al-Hanafi, and he also added Sayyiduna Uthman (may Allah be pleased with him) in the text, except that he said: "I did not hear any one of them recite Bismillah aloud."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2420