The Messenger of Allah ﷺ said, "When a woman spends," and Ubayy in his version said, "When a woman gives food from her husband's house without causing waste, she will have her reward, and he will have a reward like it for what he earned, and she will have a reward for what she spent. The storekeeper will have a similar reward, without any of their rewards being diminished in the slightest."
حدثنا محمد بن عبد الله بن نمير حدثنا أبي وأبو معاوية عن الأعمش عن أبي وائل عن مسروق
قال رسول الله ﷺ إذا أنفقت المرأة وقال أبي في حديثه إذا أطعمت المرأة من بيت زوجها غير مفسدة كان لها أجرها وله مثله بما اكتسب ولها بما أنفقت وللخازن مثل ذلك من غير أن ينقص من أجورهم شيئا
Bukhari narrated it in the Book of Zakat, Chapter on the reward of the servant when he gives charity by his master's order without being wasteful, hadith no. 1437, 1439, from the hadith of Amash, with this chain. And Muslim narrated it in the Book of Zakat, Chapter on the reward of the trustworthy treasurer and the woman when she gives charity from her husband's house, and so on, hadith no. 1024, from the hadith of Muhammad bin Abdullah bin Numayr, with this chain.