Hadith 10:272
Rafi‘ b. Makith reported the Prophet as saying, “Treating those under one’s authority well produces prosperity, but an evil nature produces evil fortune.” Abu Dawud transmitted it, but only in al-Masabih have I seen the additional words, “ Sadaqa guards against an evil type of death and kindness lengthens life.”
وَعَنْ رَافِعِ بْنِ مَكِيثٍ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «حُسْنُ الْمَلَكَةِ يُمْنٌ وَسُوءُ الْخُلُقِ شُؤْمٌ» . رَوَاهُ أَبُو دَاوُدَ وَلَمْ أَرَ فِي غَيْرِ الْمَصَابِيحِ مَا زَادَ عَلَيْهِ فيهِ منْ قولِهِ: «والصَّدَقةُ تمنَعُ مِيتةَ السُّوءِ والبِرُّ زيادةٌ فِي العُمُرِ»
Original Reference: Mishkat al-Masabih 3359