Charity leads man towards the Heaven
Charity refers to a kind of act performed for God is sake eve of the doer ever like but he does it only for God is sake, not for receiving any rewards from God; but he is granted great Divine rewards:
The virtuous will drink from a cup which will be mixed with camphor, a freely gushing spring where God is servants will drink. (76:5-6)
The virtuous are those who run a charity for God is sake, believing in God, His messenger and also the Day of Judgement.
1- They offer food to the needy, the orphan and the captive, out of love for Him, we are only feeding you for God is sake. We want no reward from you nor any thanks. (76:8-9)
2-Their compensation for being patient will be a garden and silk [clothing]. (76:12)
3-virtue does not mean for you to turn your face towards the East and west , but virtue means one should believe in God [ Alone] the last Day , the angels the Book and prophets, and no matter how he loves it, to give his wealth away to near relatives orphans, the needy , the wayfarer and beggars and towards freeing captives , and to keep up prayer and pay the welfare tax.(2:177)
Sources :
"Al-Mizan Exegesis of the Koran" (Allameh Tabatabai)
English translation of the Koran (T.B. Irving)