The people who where given the Book before this did not divide into sects until after the clear statement (of the Right Way) had come to them, and the only Command they were given was to worship Allah, making their religion sincerely His, turning all their attention towards Him, and to establish the Salat and to pay the Zakat: for this alone is the most true and right religion. (98:4 - 5) Establish Prayer and dispense the Purifying Alms (Zakat) and bow in worship with those who bow (2:43) The believers, both men and women, are allies of one another. They enjoin good, forbid evil, establish Prayer, pay Zakah, and obey Allah and His Messenger. Surely Allah will show mercy to them. Allah is All-Mighty, All-Wise (9:71) The alms (Zakat in this specific verse�s case) are meant only for the poor and the needy and those who are in charge thereof, those whose hearts are to be reconciled; and to free those in bondage, and to help those burdened with debt, and for expenditure in the way of Allah and for the wayfarer. This is an obligation from Allah. Allah is All-Knowing, All-Wise. (9:60)
Narrated by: Abu Mas'ud
The Prophet said, "If a man spends on his family (with the intention of having a reward from Allah) sincerely for Allah's sake then it is a (kind of) alms-giving in reward for him.