Mishkat al-Masabih 6 Zakat كتاب الزكاة 136

: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «كُلُّ مَعْرُوفٍ صَدَقَةٌ وَإِنَّ مِنَ الْمَعْرُوفِ أَنْ تَلْقَى أَخَاكَ بِوَجْهٍ طَلْقٍ وَأَنْ تُفْرِغَ مِنْ دَلْوِكَ فِي إِنَاءِ أَخِيكَ» . رَوَاهُ أَحْمد وَالتِّرْمِذِيّ

Jabir reported God’s messenger as saying, “Every act of kindness is sadaqa , and kindness includes meeting your brother with a cheerful face and pouring water from your bucket into your brother’s vessel.” Ahmad and Tirmidhi transmitted it.