[Machine] The Messenger of Allah ﷺ said, "Whatever you feed yourself is a charity for you, whatever you feed your spouse is a charity for you, whatever you feed your child is a charity for you, and whatever you feed your servant is a charity for you."  

قَالَ رَسُولُ اللهِ ﷺ «مَا أَطْعَمْتَ نَفْسَكَ فَهُوَ لَكَ صَدَقَةٌ وَمَا أَطْعَمْتَ زَوْجَتَكَ فَهُوَ لَكَ صَدَقَةٌ وَمَا أَطْعَمْتَ وَلَدَكَ فَهُوَ لَكَ صَدَقَةٌ وَمَا أَطْعَمْتَ خَادِمَكَ فَهُوَ لَكَ صَدَقَةٌ»  

When a Muslim spends on his family seeking reward for it from Allah, it counts for him as sadaqa. (Using translation from Muslim 1002a)  

عَنِ النَّبِيِّ ﷺ قَالَ «إِنَّ الْمُسْلِمَ إِذَا أَنْفَقَ عَلَى أَهْلِهِ نَفَقَةً وَهُوَ يَحْتَسِبُهَا كُتِبَتْ لَهُ صَدَقَةً»