(26) باب أَجْرِ الْمَرْأَةِ إِذَا تَصَدَّقَتْ أَوْ أَطْعَمَتْ مِنْ بَيْتِ زَوْجِهَا غَيْرَ مُفْسِدَةٍ
Narrated `Aisha:
The Prophet (ﷺ) said, "When a woman gives in charity from her house meals in Allah's Cause without spoiling her husband's property, she will get a reward for it, and her husband will also get the reward for his earnings and the storekeeper will get a reward likewise."
Reference: Sahih al-Bukhari 1441
In-book reference: Book 24, Hadith 44
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 24, Hadith 521