صحيح البخاري Sahih Bukhari كتاب الاستئذان The Book of Asking Permission
بَابُ إِفْشَاءِ السَّلاَمِ:

(8) Chapter. To propagate As-Salam (greeting) (among people).

1 hadith
Hadith 6235
حَدَّثَنَا قُتَيْبَةُ ، حَدَّثَنَا جَرِيرٌ ، عَنِ الشَّيْبَانِيِّ ، عَنْ أَشْعَثَ بْنِ أَبِي الشَّعْثَاءِ ، عَنْ مُعَاوِيَةَ بْنِ سُوَيْدِ بْنِ مُقَرِّنٍ ، عَنِ الْبَرَاءِ بْنِ عَازِبٍ رَضِيَ اللَّهُ عَنْهُمَا ، قَالَ : " أَمَرَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِسَبْعٍ : بِعِيَادَةِ الْمَرِيضِ ، وَاتِّبَاعِ الْجَنَائِزِ ، وَتَشْمِيتِ الْعَاطِسِ ، وَنَصْرِ الضَّعِيفِ ، وَعَوْنِ الْمَظْلُومِ ، وَإِفْشَاءِ السَّلَامِ ، وَإِبْرَارِ الْمُقْسِمِ ، وَنَهَى عَنِ الشُّرْبِ فِي الْفِضَّةِ ، وَنَهَانَا عَنْ تَخَتُّمِ الذَّهَبِ ، وَعَنْ رُكُوبِ الْمَيَاثِرِ ، وَعَنْ لُبْسِ الْحَرِيرِ ، وَالدِّيبَاجِ ، وَالْقَسِّيِّ ، وَالْإِسْتَبْرَقِ " .
Narrated Al-Bara' bin 'Azib: Allah's Apostle ordered us to do seven (things): to visit the sick, to follow the funeral processions, to say Tashmit to a sneezer, to help the weak, to help the oppressed ones, to propagate As-Salam (greeting), and to help others to fulfill their oaths (if it is not sinful). He forbade us to drink from silver utensils, to wear gold rings, to ride on silken saddles, to wear silk clothes, Dibaj (thick silk cloth), Qassiy and Istabraq (two kinds of silk). (See Hadith No. 539, Vol. 7)
Hadith Reference Sahih Bukhari / The Book of Asking Permission / Hadith: 6235
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة