This tradition has also been transmitted by Abu Hurairah through a different chain of narrators. This version dies not mention that the Prophet ﷺ said to Abu Bakr:

Raise your voice a litte ; or he said to 'Umar: Lower your voice a little. But this version adds: (The Prophet ﷺ said:) I heard you, Bilal, (reciting) ; you were reciting partly from this surah and partly from that surah. He said: This is all good speech ; Allah has combined one part with the other; The Prophet ﷺ said: All of you were correct.

حَدَّثَنَا أَبُو حَصِينِ بْنُ يَحْيَى الرَّازِيُّ، حَدَّثَنَا أَسْبَاطُ بْنُ مُحَمَّدٍ، عَنْ مُحَمَّدِ بْنِ عَمْرٍو، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ ﷺ بِهَذِهِ الْقِصَّةِ لَمْ يَذْكُرْ فَقَالَ لأَبِي بَكْرٍ : " ارْفَعْ مِنْ صَوْتِكَ شَيْئًا " . وَلِعُمَرَ : " اخْفِضْ شَيْئًا " . زَادَ : " وَقَدْ سَمِعْتُكَ يَا بِلاَلُ وَأَنْتَ تَقْرَأُ مِنْ هَذِهِ السُّورَةِ وَمِنْ هَذِهِ السُّورَةِ " . قَالَ : كَلاَمٌ طَيِّبٌ يَجْمَعُ اللَّهُ تَعَالَى بَعْضَهُ إِلَى بَعْضٍ . فَقَالَ النَّبِيُّ ﷺ : " كُلُّكُمْ قَدْ أَصَابَ " .