Imam Reza's donation

The Imam Reza (pbuh) spent all what he had on the poor and the miserable in Khorasan, so Fadl bin Sahl censured him for that, saying: "Surely this is (a kind of) damage!"
So the Imam answered him with a strong argument, saying: "Rather it is a profit; do not regard as damage that which results in reward and generosity.
It is not an act of damage when the Imam spent all what he had on the poor and the deprived in order to save them from poverty and misery; rather the damage was the enormous properties which the Abbasid kings spent on their desires and their red nights, while they spent nothing on the poor from among the Muslims.