The Book of Zuhd and Softening of Hearts
55/9. Chapter:
Saying: "May Allah Have Mercy On You" To One Who Sneezes, And Yawning Is Disliked
Sahih Muslim
حَدَّثَنَاهُ عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، عَنْ سُهَيْلٍ، عَنْ أَبِيهِ، أَوْ عَنِ ابْنِ أَبِي، سَعِيدٍ عَنْ أَبِي سَعِيدٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم بِمِثْلِ حَدِيثِ بِشْرٍ وَعَبْدِ الْعَزِيزِ .
Abu Said al-Khudri reported Allah's Messenger (ﷺ) a hadith like this through another chain of transmitters.
Reference : Sahih Muslim 2995dIn-book reference : Book 55, Hadith 77USC-MSA web (English) reference : Book 42, Hadith 7133