Key Verses

1. 2:270Al-BaqarahWarning
   وَمَآ أَنفَقۡتُم مِّن نَّفَقَةٍ أَوۡ نَذَرۡتُم مِّن نَّذۡرٖ فَإِنَّ ٱللَّهَ يَعۡلَمُهُۥۗ وَمَا لِلظَّـٰلِمِينَ مِنۡ أَنصَارٍ
   Whatever alms ye spend or vow ye vow, lo! Allah knoweth it. Wrong-doers have no helpers.
   In context

   Whatever you spend, no matter how little, for the pleasure of Allah, or any action that you promise to do for Allah without having been required to do it, Allah knows of it and it will not be lost. He will give you a great reward for it.

2. 9:121At-TawbahConsolation
   وَلَا يُنفِقُونَ نَفَقَةٗ صَغِيرَةٗ وَلَا كَبِيرَةٗ وَلَا يَقۡطَعُونَ وَادِيًا إِلَّا كُتِبَ لَهُمۡ لِيَجۡزِيَهُمُ ٱللَّهُ أَحۡسَنَ مَا كَانُواْ يَعۡمَلُونَ
   Nor spend they any spending, small or great, nor do they cross a valley, but it is recorded for them, that Allah may repay them the best of what they used to do.
   In context

   These successful ones do not sacrifice any wealth, whether it is small or great, and do not cross any valley except that their sacrifice or journey is recorded so that Allah may repay them, giving them in the Afterlife the reward for the best of what they used to do.

3. 11:91HudWarning
   قَالُواْ يَٰشُعَيۡبُ مَا نَفۡقَهُ كَثِيرٗا مِّمَّا تَقُولُ وَإِنَّا لَنَرَىٰكَ فِينَا ضَعِيفٗاۖ وَلَوۡلَا رَهۡطُكَ لَرَجَمۡنَٰكَۖ وَمَآ أَنتَ عَلَيۡنَا بِعَزِيزٖ
   They said: O Shu'eyb! We understand not much of that thou tellest, and lo! we do behold thee weak among us. But for thy family, we should have stoned thee, for thou art not strong against us.
   In context

   The people of Shu’ayb said to him: O Shu’ayb, we do not understand much of what you have brought. We regard you to be weak amongst us, and you are not one of the senior leaders. If it were not that your family follows our religious beliefs, we would have killed you by stoning. To us, you are not a person of honour such that we would be afraid of killing you.