The Prophet ﷺ said, "If a man spends on his family (with the intention of having a reward from Allah) sincerely for Allah's sake then it is a (kind of) alms-giving in reward for him.
عَنِ النَّبِيِّ ﷺ قَالَ إِذَا أَنْفَقَ الرَّجُلُ عَلَى أَهْلِهِ يَحْتَسِبُهَا فَهُوَ لَهُ صَدَقَةٌ