١٢- سَهْلُ بْنُ زِيَادٍ عَنْ مُعَاوِيَةَ بْنِ حُكَيْمٍ عَنِ الْحَسَنِ بْنِ عَلِيِّ بْنِ فَضَّالٍ قَالَ كَتَبْتُ إِلَى أَبِي الْحَسَنِ (عَلَيْهِ السَّلام) الرَّجُلُ يُسْلِفُنِي فِي الطَّعَامِ فَيَجِي‏ءُ الْوَقْتُ وَلَيْسَ عِنْدِي طَعَامٌ أُعْطِيهِ بِقِيمَتِهِ دَرَاهِمَ قَالَ نَعَمْ. 
12. Sahl ibn Ziyad has narrated from Mu‘awiyah ibn Hakim from al-Hassan ibn Ali ibn Faddal who has said the following: “I once wrote to abu al-Hassan , and asked, ‘I make an advance payment deal with a man for foodstuff and when it is due time I do not have any foodstuff, if I can give him dirhams in exchange. He (the Imam) said, ‘Yes, you can do so.”’ 