١- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ هِشَامِ بْنِ سَالِمٍ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) قَالَ دِرْهَمٌ رِبًا أَشَدُّ مِنْ سَبْعِينَ زَنْيَةً كُلُّهَا بِذَاتِ مَحْرَمٍ.
1. A number of our people have narrated from Ahmad ibn Muhammad ibn ‘Isa from Ibn Abi ‘Umayr from Hisham ibn Salim, who has said the following: “Abu ‘Abd Allah , has said, ‘The sin of receiving one dirham of Riba ’ (unlawful interest) is more serious than having carnal relations with one’s relatives (with whom marriage is unlawful).” 