I encountered this incident personally, and I will reveal it in detail.

A friend of mine telephoned me and asked me to collect some money for the commemoration of the martyrdom of Imam Hassan (a.s.) to help some needy people. I started to do so and shortly after I collected fifty dinars, while the amount needed was sixty dinars. In order to fill the deficit I personally added ten dirhams myself since the time was short and it was needed urgently.

Three days after the incident a friend of mine phoned me and told me that as he was looking into his account books he found that he owed me a hundred dirhams, and wanted to pay me back quickly. I was surprised and could not remember how he came to owe me this money.

However he reminded me, and told me that he used to pay me back in installments, and after checking his books he found that he had not paid me the last installment. Well, he paid me the money, and as I was thinking over the events I remembered how Allah promises in the Holy Quran, to increase a good deed ten folds. I remembered the amount of ten dirhams that I had taken out as charity.