It is narrated that a famous companion of Imam Musa al-Kadhim (a.s.) and Imam Riďa (a.s.), by the name of Muhammad bin Abi Umair traded in cloth. It so happened that mounting losses pushed him to the brink of poverty. One of his debtors owed him 10,000 dirhams. When he learnt of the companion’s misfortune, he sold his house and brought the money to repay the amount that he owed. Muhammad bin Umair inquired if he had received the amount of 10,000 dirhams as inheritance. When he replied in the negative, he asked if he had received it as a gift from someone. Again he replied, “No, but I have sold the house where I lived, so that I can repay my debt to you.”
Muhammad bin Umair related a saying of Imam Ja’far as-Sadiq (a.s.), prohibiting a creditor to force his debtor to sell his house and said, “By Allah, at present I am in need of each and every dirham but I cannot take a single dirham from this.”
Actually Muhammad bin Abi Umair was a rich man having assets worth over 500,000 dirhams. His present state of poverty was because of his closeness to Imam Musa al-Kadhim (a.s.). Due to this he was imprisoned for four years and lashed mercilessly. The tyrant Caliph confiscated whatever he had. May Allah have mercy upon such oppressed people. It is an established fact that if someone deprives a person of his rights then each day that passes makes him liable to a sin which is equal to collecting Ethesher (a 10% tax collected on orders of tyrant ruler).