No one gives Sadaqa of a date out of his honest earning, but Allah accepts it with His Right Hand, and then fosters it as one of you fosters the colt or a young she-camel, till it becomes like a mountain or even greater.
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَتَصَدَّقُ أَحَدٌ بِتَمْرَةٍ مِنْ كَسْبٍ طَيِّبٍ إِلاَّ أَخَذَهَا اللَّهُ بِيَمِينِهِ فَيُرَبِّيهَا كَمَا يُرَبِّي أَحَدُكُمْ فَلُوَّهُ أَوْ قَلُوصَهُ حَتَّى تَكُونَ مِثْلَ الْجَبَلِ أَوْ أَعْظَمَ