Of the dinar you spend as a contribution in Allah's path, or to set free a slave, or as a sadaqa given to a needy, or to support your family, the one yielding the greatest reward is that which you spent on your family.

قَالَ رَسُولُ اللَّهِ ﷺ دِينَارٌ أَنْفَقْتَهُ فِي سَبِيلِ اللَّهِ وَدِينَارٌ أَنْفَقْتَهُ فِي رَقَبَةٍ وَدِينَارٌ تَصَدَّقْتَ بِهِ عَلَى مِسْكِينٍ وَدِينَارٌ أَنْفَقْتَهُ عَلَى أَهْلِكَ أَعْظَمُهَا أَجْرًا الَّذِي أَنْفَقْتَهُ عَلَى أَهْلِكَ