(12) بَابُ قَوْلِ اللَّهِ تَعَالَى: {أَنْفِقُوا مِنْ طَيِّبَاتِ مَا كَسَبْتُمْ}
Narrated `Aisha:
The Prophet (ﷺ) said, "If a woman gives in charity from her house meals without wasting (i.e. being extravagant), she will get the reward for her giving, and her husband will also get the reward for his earning and the storekeeper will also get a similar reward. The acquisition of the reward of none of them will reduce the reward of the others."
Reference: Sahih al-Bukhari 2065
In-book reference: Book 34, Hadith 18
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 34, Hadith 279