7- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ أَبِي عَبْدِ اللهِ عَنْ عُثْمَانَ بْنِ عِيسَى عَنْ سَمَاعَةَ قَالَ قُلْتُ لأبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام)
إِنِّي رَأَيْتُ اللهَ تَعَالَى قَدْ ذَكَرَ الرِّبَا فِي غَيْرِ آيَةٍ وَكَرَّرَهُ فَقَالَ أَوَتَدْرِي لِمَ ذَاكَ قُلْتُ لا قَالَ لِئَلا يَمْتَنِعَ النَّاسُ مِنِ اصْطِنَاعِ الْمَعْرُوفِ.
7. A number of our people have narrated from Ahmad ibn abu ‘Abd Allah from ‘Uthman ibn ’Isa from Sama‘ah who has said the following:
“I once said to abu ’Abd Allah , ‘I have noticed that Allah, most High, has mentioned Riba’ in more than one passages of the Holy Quran. He (the Imam) asked, ’Do you know why He has done so?’ I (the narrator) replied, ’No, I do not know.’ He (the Imam) said, ‘It is because He wants people not to deny performing good and benevolent deeds.’”
Reference: Al-Kāfi, vol. 5, book 2, chapter 51, hadith 7, collection no. 465