Man Lā Yaḥḍuruh al-Faqīh
Hadith 1971768 - وَ كَتَبَ حَمْزَةُ بْنُ مُحَمَّدٍ إِلَى أَبِي مُحَمَّدٍ عَلَيْهِ اَلسَّلاَمُ : لِمَ فَرَضَ اَللَّهُ اَلصَّوْمَ فَوَرَدَ فِي اَلْجَوَابِ «لِيَجِدَ اَلْغَنِيُّ مَسَّ اَلْجُوعِ فَيَمُنَّ عَلَى اَلْفَقِيرِ.
Hadith.1768 - Hamza ibn Muhammad wrote to Abu Muhammad (as) asking: "Why did Allah (swt) make fasting obligatory?"
The response came (from Imam (as)): "So that the rich may feel the pain of hunger and thus show generosity to the poor."