Spend in the way of Allah swa.
Quran 2:261
THE PARABLE of those who spend their possessions for the sake of God is that of a grain out of which grow seven ears, in every ear a hundred grains: for God grants manifold increase unto whom He wills; and God is infinite, all-knowing.
Quran 2:265
And the parable of those who spend their possessions out of a longing to please God, and out of their own inner certainty, is that of a garden on high, fertile ground: a rainstorm smites it, and thereupon it brings forth its fruit twofold; and if no rainstorm smites it, soft rain [falls upon it]. And God sees all that you do.