"Every Muslim must give charity." It was said: "What if he cannot find (anything to give)? "He said: "Let him work with his hands and benefit himself and give in charity." It was said: "What if he cannot do that?" He said: "Let him help someone who is in desperate need." It was said: "What if he cannot do that?" He said: "Let him enjoin good." It was said: "What if he cannot do that? He said: "Let him refrain from doing evil, for that is an act of charity." (Using translation from Nasāʾī 2538)   

قَالَ رَسُولُ اللَّهِ ﷺ «عَلَى كُلِّ مُسْلِمٍ صَدَقَةٌ» قَالُوا يَا رَسُولَ اللَّهِ فَإِنْ لَمْ يَسْتَطِعْ أَوْ لَمْ يَفْعَلْ؟ قَالَ «يَعْتَمِلُ بِيَدَيْهِ فَيَأْكُلُ مِنْهُ وَيَتَصَدَّقُ» قَالُوا أَفَرَأَيْتَ إِنْ لَمْ يَفْعَلْ؟ قَالَ «يُعِينُ ذَا الْحَاجَةِ الْمَلْهُوفَ» قَالُوا أَفَرَأَيْتَ إِنْ لَمْ يَفْعَلْ؟ قَالَ «يَأْمُرُ بِالْخَيْرِ» قَالُوا أَفَرَأَيْتَ إِنْ لَمْ يَفْعَلْ؟ قَالَ «يُمْسِكُ عَنِ الشَّرِّ فَإِنَّهَا لَهُ صَدَقَةٌ»