Sahih Muslim , Book 5, Hadith 2232 (USC-MSA) ⓘ
'A'isha reported Allah's Messenger as saying: When a woman gives in charity some of the food in her house, without causing any damage, there is reward for her for whatever she has given, and a reward for her husband for what he earned. The same applies to the trustee. In no respect does the one diminish the reward of the other.
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَزُهَيْرُ بْنُ حَرْبٍ، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، جَمِيعًا عَنْ جَرِيرٍ، - قَالَ يَحْيَى - أَخْبَرَنَا جَرِيرٌ، عَنْ مَنْصُورٍ، عَنْ شَقِيقٍ، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِذَا أَنْفَقَتِ الْمَرْأَةُ مِنْ طَعَامِ بَيْتِهَا غَيْرَ مُفْسِدَةٍ كَانَ لَهَا أَجْرُهَا بِمَا أَنْفَقَتْ وَلِزَوْجِهَا أَجْرُهُ بِمَا كَسَبَ وَلِلْخَازِنِ مِثْلُ ذَلِكَ لاَ يَنْقُصُ بَعْضُهُمْ أَجْرَ بَعْضٍ شَيْئًا " .
also referenced under: Book 12, Hadith 101 (In-Book) & Hadith 1024 (Reference)