Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) narrates from the Prophet (peace and blessings be upon him) that he (peace and blessings be upon him) said: "Whoever feeds a believer until he satisfies him from hunger, Allah will admit him through one of the gates of Paradise, through which no one enters except one like him."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17298