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Surah 9. Al-Tawba
Ayah 75 - 79
٧٥. وَمِنْهُم مَّنْ عَـٰهَدَ ٱللَّهَ لَئِنْ ءَاتَىٰنَا مِن فَضْلِهِۦ لَنَصَّدَّقَنَّ وَلَنَكُونَنَّ مِنَ ٱلصَّـٰلِحِينَ
٧٦. فَلَمَّآ ءَاتَىٰهُم مِّن فَضْلِهِۦ بَخِلُوا۟ بِهِۦ وَتَوَلَّوا۟ وَّهُم مُّعْرِضُونَ
٧٧. فَأَعْقَبَهُمْ نِفَاقًا فِى قُلُوبِهِمْ إِلَىٰ يَوْمِ يَلْقَوْنَهُۥ بِمَآ أَخْلَفُوا۟ ٱللَّهَ مَا وَعَدُوهُ وَبِمَا كَانُوا۟ يَكْذِبُونَ
٧٨. أَلَمْ يَعْلَمُوٓا۟ أَنَّ ٱللَّهَ يَعْلَمُ سِرَّهُمْ وَنَجْوَىٰهُمْ وَأَنَّ ٱللَّهَ عَلَّـٰمُ ٱلْغُيُوبِ
٧٩. ٱلَّذِينَ يَلْمِزُونَ ٱلْمُطَّوِّعِينَ مِنَ ٱلْمُؤْمِنِينَ فِى ٱلصَّدَقَـٰتِ وَٱلَّذِينَ لَا يَجِدُونَ إِلَّا جُهْدَهُمْ فَيَسْخَرُونَ مِنْهُمْ ۙ سَخِرَ ٱللَّهُ مِنْهُمْ وَلَهُمْ عَذَابٌ أَلِيمٌ
[75-79] There are some among them, who made this covenant with Allah: If He gives us of His bounty, we will disburse charity and lead a righteous life." But when Allah enriched them by His bounty, they grew niggardly and went back on their covenant, and paid no heed to it.86 As a consequence of the breach of the covenant they had made with Allah and the lies they told, He set hypocrisy deep in their hearts that will follow them till the Day when they shall meet Him. Do these people not know that Allah knows fully well even their secrets and their conspiracies and that Allah knows fully well all that is hidden. (He fully knows those stingy rich people) who find fault with the monetary sacrifices of those Believers who make willing and voluntary contributions generously and scoff at those people who find nothing to contribute (to the cause of Allah) except what little they contribute sacrificing their own needs:87 Allah scoffs at those who scoff and there is a painful punishment in store for them.
86This is an instance of their ingratitude for which the hypocrites were rebuked in v. 74.
They broke their covenant with Allah which enjoined them to spend money in charity, if Allah enriched Them by His bounty. This shows that they were confirmed criminals and they did not care in the least for the agreements they made, and were niggardly and had no moral code to observe.
87This 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 came 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 by hard work, they would at once ridicule, saying, `Lo! Here is the farthing that will help conquer the forts of the Roman Empire!"