The Mitzva:
The Mitzva of Tzedaka is repeated numerous amount of times throughout the Torah to underscore its great importance:
ืืฆืืช ืขืฉื ืืืชื ืฆืืงื ืืคื ืืฉืืช ืื ืืืื ืคืขืืื ื ืฆืืืื ื ืื ืืืฆืืช ืขืฉื ืืืฉ ืื ืชืขืฉื ืืืขืืื ืขืื ืื ืืื ื ืฉื ืืืจ ืื ืชืืืฅ ืืช ืืืื ืืื ืชืงืคืืฅ ืืช ืืื ืืื ืืืขืืื ืขืื ืื ืืื ื ื ืงืจื ืืืืขื ืืืืืื ืขืืื ืืืืืื ืืืื ืืฉ ืืืืืจ ืื ืื ืืคืฉืจ ืฉืืื ืืืื ืฉืคืืืืช ืืืื ืฉืืืืช ืืขื ื ืืืืงืฉ ืื ืื ืืชื ืื ืืื ืืขืืืื ืื ืืื ืืืฉ ืื ืื
ืฉื"ืข ืื"ื ืกื' ืจื"ื ืกืขื' ื
Who:
The Mitzva of Tzedaka is incumbent upon every individual, rich and poor alike:
ืื ืืื ืืืื ืืืชื ืฆืืงื ืืคืืื ืขื ื ืืืชืคืจื ืก ืื ืืฆืืงื ืืืื ืืืชื ืืื ืฉืืชื ื ืื ืืื ืฉื ืืชื ืคืืืช ืืื ืฉืจืืื (ืื) ืืืชื ืืืช ืืื ืืื ืืืคืื ืืืชื ืืืืื ืืืชื ืืืช ืืจืืืช ืขื ืฉืืชื ืื ืฉืืืืืื ืืืชื ืืืืจืืื ืื ืืกืื ืืคื ืื ืืืืงืืื ืืื ื ืื ืฉืจืืื ืื ืืืชื:
ืฉื"ืข ืื"ื ืกื' ืจื"ื ืกืขื' ื
What:
The minimum amount of Tzedaka one must give is no less than one-third of a shekel a year (the equivalent of approximately 11.33 in modern U.S dollar):
ืืขืืื ืื ืืื ืข ืืื ืขืฆืื ืคืืืช ืืฉืืืฉืืช ืืฉืงื ืืฉื ื ืืื ื ืชื ืคืืืช ืืื ืื ืงืืื ืืฆืืช ืฆืืงื
ืฉื"ืข ืื"ื ืกื' ืจื"ื ืกืขื' ื
When:
There is a notable exception to the all-inclusive Mitzva of Tzedaka, that being, one who only has the money of others:
ืืื ืืื ืืืื ืืื ืืฉื ืืืจืื ืื ืชืชื ืฆืืงื ืฉืื ืื ืืืื ืื ืืื ืืฉืื:
ืกืคืจ ืืืกืืืื ืฉืฆื
Similarly, such an individual should not make pledges or acquire seforim with such monies:
ืจืื ืฉืืขืื ืืืืจ ืื ืืืื ืืจืืื ืืืงืืฉื ืื ืืงืืืฉ ืืืื ืืื ืืื ืฉืืืื ืืืืจืื ืืืื ืืืื ืื ืืฉืื ืื ืืงื ื ืกืคืจืื ืืื ืืชื ืฆืืงื ืืื ืืฉืืืจ ืกืืคืจืื ืืื ืืชื ื ืจืืช ืื"ื. ืืขื ืื ื ืืืจ (ืืฉืขืืื ืกื ื) ืฉืื ื ืืื ืืขืืื ืื ืฉืืฉ ืื ืืืื ืืืืจืื ืื ืชืงื ืืช ืฉืืืื ืืขืฉืืช ืืชืงื ืช ืืืชื ืฉืืคืงืืื ืืืื ืืขืฉื:
ืกืคืจ ืืืกืืืื ืฉืฆื