The Profit Of A Believer From Another

Imam al-Sadiq (AS) said, ‘The profit of a believer from another is usury, unless he buys with more than one hundred dirhams, whereupon you can profit as much as your days sustenance; or if he buys it for trading, then you can profit, but be moderate with them.

Imam al-Sadiq (AS), when he was asked about the statement: ‘The profit of a believer from another is usury, replied, ‘That is when equity prevails, and our Qaim [i.e. the Mahdi] appears; but for now, it does not matter.