Al-Husayn b. Ahmad b. Idris narrated to us. He said: My father narrated to us from Ahmad b. Muhammad b. `Isa from al-Hasan b. `Ali b. Faddal from Hammad b. `Isa from Ibrahim b. `Umar al-Yamani from Abi `Abdillah al-Sadiq (as). He said
There is no believer who lets his brother down when he is capable of supporting him except that Allah lets him down in this world and the Hereafter.