When a woman spends (something as Sadaqa) out of the household of her husband without causing any damage, there is a reward for her and for him too like it for whatever he earned, and for her (for the wife) because of her spending (for the sake of Allah), and for the trustee also (there is a reward like it), without any reduction from their rewards.  

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا أَنْفَقَتِ الْمَرْأَةُ مِنْ بَيْتِ زَوْجِهَا غَيْرَ مُفْسِدَةٍ كَانَ لَهَا أَجْرُهَا وَلَهُ مِثْلُهُ بِمَا اكْتَسَبَ وَلَهَا بِمَا أَنْفَقَتْ وَلِلْخَازِنِ مِثْلُ ذَلِكَ مِنْ غَيْرِ أَنْ يَنْتَقِصَ مِنْ أُجُورِهِمْ شَيْئًا  

"When a woman give charity from her husband's house, she will have a reward, and her husband will have a similar reward, and the storekeeper will have a similar reward, without the reward of any of them detracting from the reward of the others in the slightest. The husband will be rewarded for what he earned and she will be rewarded for what she spent."  

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا تَصَدَّقَتِ الْمَرْأَةُ مِنْ بَيْتِ زَوْجِهَا كَانَ لَهَا أَجْرٌ وَلِلزَّوْجِ مِثْلُ ذَلِكَ وَلِلْخَازِنِ مِثْلُ ذَلِكَ وَلاَ يَنْقُصُ كُلُّ وَاحِدٍ مِنْهُمَا مِنْ أَجْرِ صَاحِبِهِ شَيْئًا لِلزَّوْجِ بِمَا كَسَبَ وَلَهَا بِمَا أَنْفَقَتْ  

the Prophet said: "When a woman gives in charity from her husband's house, she will get the reward for it, and for her husband is the same as that, and for the trustee is the same as that. The reward of each them will not be decreased at all by the reward of the other, for him is what he earned, and for her is what she spent."  

عَنِ النَّبِيِّ ﷺ أَنَّهُ قَالَ إِذَا تَصَدَّقَتِ الْمَرْأَةُ مِنْ بَيْتِ زَوْجِهَا كَانَ لَهَا بِهِ أَجْرٌ وَلِلزَّوْجِ مِثْلُ ذَلِكَ وَلِلْخَازِنِ مِثْلُ ذَلِكَ وَلاَ يَنْقُصُ كُلُّ وَاحِدٍ مِنْهُمْ مِنْ أَجْرِ صَاحِبِهِ شَيْئًا لَهُ بِمَا كَسَبَ وَلَهَا بِمَا أَنْفَقَتْ  

Messenger of Allah ﷺ said, "When a woman gives in charity some of the foodstuff (which she has in her house) without spoiling it, she will receive the reward for what she has spent, and her husband will receive the reward because of his earning, and the storekeeper will also have a reward similar to it. The reward of one will not decrease the reward of the others . " (Using translation from Bukhārī 1425)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا أَنْفَقَتِ الْمَرْأَةُ مِنْ طَعَامِ بَيْتِهَا غَيْرَ مُفْسِدَةٍ كَانَ لَهَا أَجْرُهَا بِمَا أَنْفَقَتْ وَلِزَوْجِهَا أَجْرُهُ بِمَا اكْتَسَبَ وَلِلْخَازِنِ مِثْلُ ذَلِكَ لَا يَنْقُصُ بَعْضُهُمْ مِنْ أَجْرِ بَعْضٍ شَيْئًا  

"When a woman give charity from her husband's house, she will have a reward, and her husband will have a similar reward, and the storekeeper will have a similar reward, without the reward of any of them detracting from the reward of the others in the slightest. The husband will be rewarded for what he earned and she will be rewarded for what she spent." (Using translation from Nasāʾī 2539)  

عَنِ النَّبِيِّ ﷺ قَالَ «إِذَا تَصَدَّقَتِ الْمَرْأَةُ مِنْ بَيْتِ زَوْجِهَا كَانَ لَهَا أَجْرٌ وَلِلزَّوْجِ مِثْلُ ذَلِكَ وَلِلْخَازِنِ مِثْلُ ذَلِكَ وَلَا يَنْقُصُ كُلُّ وَاحِدٍ مِنْهُمَا مِنْ أَجْرِ صَاحِبِهِ شَيْئًا لِلزَّوْجِ بِمَا كَسَبَ وَلَهَا بِمَا أَنْفَقَتْ»  

"When a woman give charity from her husband's house, she will have a reward, and her husband will have a similar reward, and the storekeeper will have a similar reward, without the reward of any of them detracting from the reward of the others in the slightest. The husband will be rewarded for what he earned and she will be rewarded for what she spent." (Using translation from Nasāʾī 2539)  

عَنِ النَّبِيِّ ﷺ قَالَ «إِذَا تَصَدَّقَتِ الْمَرْأَةُ مِنْ بَيْتِ زَوْجِهَا كَانَ لَهَا أَجْرٌ وَلِلزَّوْجِ مِثْلُ ذَلِكَ وَلِلْخَازِنِ مِثْلُ ذَلِكَ وَلَا يَنْقُصُ كُلُّ وَاحِدٍ مِنْهُمَا مِنْ أَجْرِ صَاحِبِهِ شَيْئًا لِلزَّوْجِ مَا كَسَبَ وَلَهَا مَا أَنْفَقَتْ»  

A’ishah reported The Messenger of Allah ﷺ as saying When a woman gives (some of the property) from her husband’s house, not wasting it, she will have her reward for what she has spent, and her husband will have his for what he earned. The said applies to a trustee. In no respect does the one diminish the reward of the other. (Using translation from Abū Dāʾūd 1685)   

"إذَا أَنفقت المرأةُ من بيتِ زوجها غيرَ مُفسدةٍ كان لها أجرُها بِما أنفقتْ -ولزوجِها أجرُه بما كَسَب- وللخازن مثل ذلك- لا ينقصُ بعضُهم من أجرِ بعضٍ شيئًا" .