Musnad Ahmad 1153:663

Muhammad ibn Ja‘far narrated to us, he said: Shu‘bah narrated to us, from ‘Amr ibn Murrah, he said: I heard Abu Wa’il narrating from ‘Aishah, from the Prophet, peace and blessings of Allah be upon him, he said: "If a woman gives charity from her husband’s house, she has a reward for it, and the husband has the like of that, and the treasurer has the like of that. None of them diminishes anything from the reward of the other. The husband has [reward] for what he earned, and she has [reward] for what she spent."