عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ ((مَثَلُ الْبَخِيلِ وَالْمُنْفِقِ كَمَثَلِ رَجُلَيْنِ عَلَيْهِمَا جُبَّتَانِ مِنْ حَدِيدٍ مِنْ لَدُنْ ثُدِيِّهِمَا إِلَى تَرَاقِيهِمَا فَأَمَّا الْمُنْفِقُ فَلَا يُنْفِقُ مِنْهَا إِلَّا اتَّسَعَتْ حَلْقَةٌ مَكَانَهَا فَهُوَ يُوَسِّعُهَا عَلَيْهِ وَأَمَّا الْبَخِيلُ فَإِنَّهَا لَا تَزْدَادُ عَلَيْهِ إِلَّا اسْتِحْكَامًا))
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: The example of the miser and the spender is like two men who are wearing armor from their chest up to their collarbone. Whenever the spender spends, the rings of his armor open up at their place until it becomes completely open. As for the miser, the tightness of his armor only increases.