The Book of Zuhd and Softening of Hearts
55/5. Chapter:
The Prohibition On Showing Off
Sahih Muslim
وَحَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، حَدَّثَنَا الْمُلاَئِيُّ، حَدَّثَنَا سُفْيَانُ، بِهَذَا الإِسْنَادِ وَزَادَ وَلَمْ أَسْمَعْ أَحَدًا غَيْرَهُ يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم .
Sufyan reported this hadith with the same chain of transmitters and he made this addition: " I did not hear anyone saying besides him that it was Allah's Messenger (ﷺ) who had said so."
Reference : Sahih Muslim 2987bIn-book reference : Book 55, Hadith 61USC-MSA web (English) reference : Book 42, Hadith 7117