Sahih Muslim
Book 45: The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship
كتاب البر والصلة والآداب
217 hadith in this book
Chapter 43 It Is Recommend To Show A Cheerful Countenance When Meeting Others
باب اسْتِحْبَابِ طَلاَقَةِ الْوَجْهِ عِنْدَ اللِّقَاءِ
Abu Dharr reported: Allah's Messenger (ﷺ) said to me: Don't consider anything insignificant out of good things even if it is that you meet your brother with a cheerful countenance.
حَدَّثَنِي أَبُو غَسَّانَ الْمِسْمَعِيُّ، حَدَّثَنَا عُثْمَانُ بْنُ عُمَرَ، حَدَّثَنَا أَبُو عَامِرٍ، - يَعْنِي الْخَزَّازَ - عَنْ أَبِي عِمْرَانَ الْجَوْنِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ الصَّامِتِ، عَنْ أَبِي ذَرٍّ، قَالَ قَالَ لِيَ النَّبِيُّ صلى الله عليه وسلم " لاَ تَحْقِرَنَّ مِنَ الْمَعْرُوفِ شَيْئًا وَلَوْ أَنْ تَلْقَى أَخَاكَ بِوَجْهٍ طَلْقٍ " .
Hadith text, translations and grading are courtesy of Sunnah.com.