Musnad Abu Ya'la al-Mawsili 149:3

Shayban narrated to us, Jarir narrated to us, al-A’mash narrated to us, from Abu al-Duha, from Masruq, from ‘Aishah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "If a woman gives charity from her husband's house without being a corrupter, she has her reward, and for her husband is the reward of what he earned, and for her is the reward of what she intended, and for the treasurer is the like of that."