input: [0] ZAKAT [1] Giving to the poor and those in need a percentage of wealth beyond basic needs [2] Purification of wealth by giving a portion away--"a loan to God" [3] Constant and dependable stream of charity available to Muslim society [4] Limitation on greed and accumulation of wealth Stimulated both required and voluntary additional charity [6] (WAQF) charitable foundations developed as permanent source of funding for mosques, schools & colleges, universities, hospitals, wells and travelers� accommodations, institutionalized help for the poor [5] 
output: Early development of charitable institutions and foundations; collective public works free from state control, tax exempt