Abu Hurairah reported I asked Messenger of Allah ﷺ, What kind of sadaqah is most excellent? He replied What a man with little property can afford to give; and begin with those for whom you are responsible.  

أَنَّهُ قَالَ يَا رَسُولَ اللَّهِ أَىُّ الصَّدَقَةِ أَفْضَلُ قَالَ جُهْدُ الْمُقِلِّ وَابْدَأْ بِمَنْ تَعُولُ  

The Messenger of Allah ﷺ commanded us one day to give sadaqah. At that time I had some property. I said: Today I shall surpass AbuBakr if I surpass him any day. I, therefore, brought half my property. The Messenger of Allah ﷺ asked: What did you leave for your family? I replied: The same amount. AbuBakr brought all that he had with him. The Messenger of Allah ﷺ asked him: What did you leave for your family? He replied: I left Allah and His Apostle for them. I said: I shall never compete you in anything.  

سَمِعْتُ عُمَرَ بْنَ الْخَطَّابِ ؓ يَقُولُ أَمَرَنَا رَسُولُ اللَّهِ ﷺ يَوْمًا أَنْ نَتَصَدَّقَ فَوَافَقَ ذَلِكَ مَالاً عِنْدِي فَقُلْتُ الْيَوْمَ أَسْبِقُ أَبَا بَكْرٍ إِنْ سَبَقْتُهُ يَوْمًا فَجِئْتُ بِنِصْفِ مَالِي فَقَالَ رَسُولُ اللَّهِ ﷺ مَا أَبْقَيْتَ لأَهْلِكَ قُلْتُ مِثْلَهُ قَالَ وَأَتَى أَبُو بَكْرٍ ؓ بِكُلِّ مَا عِنْدَهُ فَقَالَ لَهُ رَسُولُ اللَّهِ ﷺ مَا أَبْقَيْتَ لأَهْلِكَ قَالَ أَبْقَيْتُ لَهُمُ اللَّهَ وَرَسُولَهُ قُلْتُ لاَ أُسَابِقُكَ إِلَى شَىْءٍ أَبَدًا