The Cow - 2:219
"They ask you about intoxicants and gambling: Say: "There is a great sin in both of them and benefits for mankind, but their sin is greater than their benefit."They also ask you what they should give in charity: Say, "The surplus."This is how Allah explains His verses so that you may reflect"
Charity is multiplied in the sight of Allah:
The Cattle/6:160
Whoever brings good, he shall have ten times what he brought. And whoever brings evil, he shall be punished only with its equivalent, and they shall not be wronged.
The Cow/2:265
The example of those who spend their money because they want to earn Allah´s pleasure and they are convinced of it is like the example of a high-yielding garden which yields double its produce when it receives abundant rain, and is content with the dew even if it does not receive abundant rain. Allah sees what you do.
The Cow/2:261
The example of those who spend their money in the Way of Allah is like that of a grain which yields seven ears of grain, one hundred in each. Allah gives in multiples to whomever He wills. Allah is Generous, Knowing.