Sahih al-Bukhari 6021
Sahih al-Bukhari · Book 78: Good Manners and Form (Al-Adab) · Enjoining all that is Al-Ma'ruf is considered as a Sadaqa
Narrated Jabir bin `Abdullah:
حَدَّثَنَا عَلِيُّ بْنُ عَيَّاشٍ ، حَدَّثَنَا أَبُو غَسَّانَ ، قَالَ حَدَّثَنِي مُحَمَّدُ بْنُ الْمُنْكَدِرِ ، عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ ـ رضى الله عنهما ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " كُلُّ مَعْرُوفٍ صَدَقَةٌ " .
The Prophet (ﷺ) said, Enjoining, all that is good is a Sadaqa."