١٥- الْحُسَيْنُ بْنُ مُحَمَّدٍ عَنْ مُعَلَّى بْنِ مُحَمَّدٍ عَنِ الْوَشَّاءِ عَنْ عَبْدِ اللهِ بْنِ سِنَانٍ قَالَ سَمِعْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) يَقُولُ لا يَنْبَغِي لِلرَّجُلِ إِسْلافُ السَّمْنِ بِالزَّيْتِ وَلا الزَّيْتِ بِالسَّمْنِ.
15. Al-Husayn ibn Muhammad has narrated from Mu’alla’ ibn Muhammad from al-Washsha’ from ‘Abd Allah ibn Sinan who has said the following: “I once heard abu ‘Abd Allah , saying, ‘It is not valid for a man to make advance payment in the form of ghee to receive oil and vice versa.’” 