Al-Baqara (The Cow) 2:270 For, whatever alms you may spend on others, or whatever you may vow [to spend], God knows it; and those who do wrong [by withholding charity] shall have none to succour them
Ar-Rum (The Romans) 30:39 That which ye lay out for increase through the property of (other) people, will have no increase with Allah. but that which ye lay out for charity, seeking the Countenance of Allah, (will increase): it is these who will get a recompense multiplied
Fussilat (Explained in Detail) 41:7 [and] those who do not spend in charity: for it is they, they who [thus] deny the truth of the life to come!
Al-Munafiqun (The Hypocrites) 63:10 And spend on others out of what We have provided for you as sustenance, ere there come a time when death approaches any of you, and he then says, "O my Sustainer! If only Thou wouldst grant me a delay for a short while, so that I could give in charity and be among the righteous!"
At-Taghabun (Loss and Gain) 64:16 Remain, then, conscious of God as best you can, and listen [to Him], and pay heed. And spend in charity for the good of your own selves: for, such as from their own covetousness are saved – it is they, they that shall attain to a happy state!