"If Abdullah bin Mughaffal heard any one of us recite: 'In the Name of Allah, the Most Gracious, the Most Merciful', he would say: 'I prayed behind the Messenger of Allah ﷺ and behind Abu Bakr and behind Umar-may Allah be pleased with them both- and I did not hear any of them recite: 'In the Name of Allah, the Most Gracious, the Most Merciful." (Using translation from Nasāʾī 908)
سَمِعَ أَحَدًا يَقْرَأُ بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ يَقُولُ «صَلَّيْتُ خَلْفَ رَسُولِ اللهِ ﷺ وَخَلْفَ أَبِي بَكْرٍ وَخَلْفَ عُمَرَ فَمَا سَمِعْتُ أَحَدًا مِنْهُمْ قَرَأَ بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ»