The Book of Zakat (Kitab Al-Zakat)
Muslim :: Book 5 : Hadith 2232
'A'isha reported Allah's Messenger (may peace be upon him) as saying: When a woman gives in charity some of the food in her house, without causing any damage, there is reward for her for whatever she has given, and a reward for her husband for what he earned. The same applies to the trustee. In no respect does the one diminish the reward of the other.
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