Obligatory Charity Tax (Zakat)

Bukhari :: Book 2 :: Volume 24 :: Hadith 521

Narrated 'Aisha:

The Prophet said, "When a woman gives in charity from her house meals in Allah's Cause without spoiling her husband's property, she will get a reward for it, and her husband will also get the reward for his earnings and the storekeeper will get a reward likewise."