The Book of Prayer - Travellers
6/48. Chapter:
The clarification that the Qur’an was revealed in seven ahruf (modes of recitation), and clarifying its meaning
Sahih Muslim
وَحَدَّثَنَاهُ عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، بِهَذَا الإِسْنَادِ مِثْلَهُ .
This hadith has been narrated by Shu'ba with the same chain of transmitters.
Reference : Sahih Muslim 821bIn-book reference : Book 6, Hadith 335USC-MSA web (English) reference : Book 4, Hadith 1790