One day Imam Sadeq said to his son “Mohammad”: My son, how much of allowance is left with you? -Forty Dinars -Take it out and give alms in the way of God. -We have nothing other than this.
“Give it out in the way of God so that He will reward it to us. Don’t you know that everything has a key and the key to sustenance is alms? Therefore give alms.”
The son of the Imam did so. Ten days had hardly passed when forty thousand Dinars were sent for the Imam by someone.