صَحِيحُ مُسْلِمٍ
Sahih Muslim 819 b
The Book of Prayer - Travellers
The clarification that the Qur’an was revealed in seven ahruf (modes of recitation), and clarifying its meaning
وَحَدَّثَنَاهُ عَبْدُ بْنُ حُمَيْدٍ، أَخْبَرَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، بِهَذَا الإِسْنَادِ.
This hadith has been narrated by Zuhri with the same chain of trans- mitters.
Sahih Muslim, 819 bSahihصحيح