صحيح البخاري Sahih Bukhari كتاب الأدب The Book of Al-Adab (Good Manners)
بَابُ تَشْمِيتِ الْعَاطِسِ إِذَا حَمِدَ اللَّهَ:

(124) Chapter. Tashmit (i.e., to say Yarhamukallah) to the sneezer if he praises Allah (i.e., if he says, ’Al-Hamdu-lillah’)

1 hadith
Hadith 6222
حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ ، حَدَّثَنَا شُعْبَةُ ، عَنِ الْأَشْعَثِ بْنِ سُلَيْمٍ ، قَالَ : سَمِعْتُ مُعَاوِيَةَ بْنَ سُوَيْدِ بْنِ مُقَرِّنٍ ، عَنِ الْبَرَاءِ رَضِيَ اللَّهُ عَنْهُ ، قَالَ : " أَمَرَنَا النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِسَبْعٍ وَنَهَانَا عَنْ سَبْعٍ : أَمَرَنَا بِعِيَادَةِ الْمَرِيضِ ، وَاتِّبَاعِ الْجِنَازَةِ ، وَتَشْمِيتِ الْعَاطِسِ ، وَإِجَابَةِ الدَّاعِي ، وَرَدِّ السَّلَامِ ، وَنَصْرِ الْمَظْلُومِ ، وَإِبْرَارِ الْمُقْسِمِ . وَنَهَانَا عَنْ سَبْعٍ : عَنْ خَاتَمِ الذَّهَبِ أَوْ قَالَ حَلْقَةِ الذَّهَبِ ، وَعَنْ لُبْسِ الْحَرِيرِ ، وَالدِّيبَاجِ ، وَالسُّنْدُسِ ، وَالْمَيَاثِرِ " .
Narrated Al-Bara: The Prophet ordered us to do seven (things) and forbade us from seven (other things): He ordered us to pay a visit to the sick, to follow funeral possessions, to say: May Allah be merciful to you to a sneezer, - if he says: Praise be to Allah, to accept invitation (invitation to a wedding banquet), to return greetings, to help the oppressed, and to help others to fulfill their oaths (provided it was not sinful). And he forbade us from seven (things): to wear golden rings or golden bangles, to wear silk (cloth), Dibaj, Sundus and Mayathir.
Hadith Reference Sahih Bukhari / The Book of Al-Adab (Good Manners) / Hadith: 6222
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة