9-Surah At-Taubah ( The Repentance ) 79
Those who criticize the contributors among the believers concerning [their] charities and [criticize] the ones who find nothing [to spend] except their effort, so they ridicule them – Allah will ridicule them, and they will have a painful punishment.
الَّذِينَ يَلْمِزُونَ الْمُطَّوِّعِينَ مِنَ الْمُؤْمِنِينَ فِي الصَّدَقَاتِ وَالَّذِينَ لَا يَجِدُونَ إِلَّا جُهْدَهُمْ فَيَسْخَرُونَ مِنْهُمْ ۙ سَخِرَ اللَّهُ مِنْهُمْ وَلَهُمْ عَذَابٌ أَلِيمٌ
Quran's Tafhim ( explanation)
*87) This refers to the mean conduct which the hypocrites evinced on the occasion of the appeal of the Holy Prophet for contributions towards the Tabuk expedition. The well-to-do hypocrites did not themselves make any contributions, but when the sincere Muslims carne forward with generous contributions according to their means, they began to deride them. If a well-to-do Muslim made a handsome contribution, they would at once accuse him to be guilty of a 'showoff . On the other hand, if a poor Muslim contributed a paltry sum which he could hardly spare after sacrificing some of the barest necessities of his family or contributing the small earnings obtained b; hard work, they would at once ridicule, saying, `Lo! Here is the farthing that will help conquer the forts of the Roman Empire!"