(25) باب أَجْرِ الْخَادِمِ إِذَا تَصَدَّقَ بِأَمْرِ صَاحِبِهِ غَيْرَ مُفْسِدٍ
Narrated `Aisha:
Allah's Messenger (ﷺ) said, "When a woman gives in charity from her husband's meals without wasting the property of her husband, she will get a reward for it, and her husband too will get a reward for what he earned and the storekeeper will have the reward likewise."
Reference: Sahih al-Bukhari 1437
In-book reference: Book 24, Hadith 40
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 24, Hadith 518