مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 1893
Zakat
The Excellence of Sadaqa - Section 1
وَعَنْ جَابِرٍ وَحُذَيْفَةَ قَالَا: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «كُلُّ مَعْرُوف صَدَقَة»
Jabir and Hudhaifa reported God’s messenger as saying, “Every act of kindness is sadaqa.” (Bukhari and Muslim.)
Mishkat al-Masabih, 1893مُتَّفَقٌ عَلَيْهِ (الألباني)