Mishkat al-Masabih 6 Zakat كتاب الزكاة 114

وَعَنْ عَلِيٍّ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «بَادِرُوا بِالصَّدَقَةِ فَإِنَّ الْبَلَاءَ لَا يَتَخَطَّاهَا» . رَوَاهُ رَزِينٌ

‘Ali reported God’s messenger as saying, “Give the sadaqa without delay, for it stands in the way of calamity.”* Razln transmitted it. * The idea is that it acts as a barrier beyond which calamity cannot pass.