Quran 3:91 — The Amramites (Ali-'Imran)

Those who disbelieve and die as disbelievers, an earthful of gold will not be accepted from any of them, even if such a ransom were possible. They have incurred painful retribution; they will have no helpers.

[3:90] Those who disbelieve after believing, then plunge deeper into disbelief, their repentance will not be accepted from them; they are the real strayers.

[3:92] You cannot attain righteousness until you give to charity from the possessions you love. Whatever you give to charity, GOD is fully aware thereof.