Shu'ba reported this hadith with the same chain of transmitters, but he made no mention that Shu'ba was in doubt and what follows subsequently.
وَحَدَّثَنِي عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، بِهَذَا الإِسْنَادِ . نَحْوَهُ وَلَمْ يَذْكُرْ إِنَّمَا شَكَّ شُعْبَةُ . وَمَا بَعْدَهُ .
Muslim
The Book of Prayer - Travellers • Hadith 215