١٢ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنْ عَلِيِّ بْنِ النُّعْمَانِ عَنِ ابْنِ مُسْكَانَ عَنْ سُلَيْمَانَ بْنِ خَالِدٍ عَنْ أَبِي جَعْفَرٍ (عَلَيهِ السَّلام) قَالَ قَالَ أَبُو جَعْفَرٍ (عَلَيهِ السَّلام) يَا سُلَيْمَانُ أَ تَدْرِي مَنِ الْمُسْلِمُ قُلْتُ جُعِلْتُ فِدَاكَ أَنْتَ أَعْلَمُ قَالَ الْمُسْلِمُ مَنْ سَلِمَ الْمُسْلِمُونَ مِنْ لِسَانِهِ وَيَدِهِ ثُمَّ قَالَ وَتَدْرِي مَنِ الْمُؤْمِنُ قَالَ قُلْتُ أَنْتَ أَعْلَمُ قَالَ إِنَّ الْمُؤْمِنَ مَنِ ائْتَمَنَهُ الْمُسْلِمُونَ عَلَى أَمْوَالِهِمْ وَأَنْفُسِهِمْ وَالْمُسْلِمُ ح��رَامٌ عَلَى الْمُسْلِمِ أَنْ يَظْلِمَهُ أَوْ يَخْذُلَهُ أَوْ يَدْفَعَهُ دَفْعَةً تُعَنِّتُهُ.
12. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Ali ibn al-Nu’man from ibn Muskan from Sulayman ibn Khalid who has said the following: “Once abu Ja’far  said to me, ‘O Sulayman, do you know who a Muslim is?’ I said, ‘May Allah keep my soul in service for your cause, you know better. ’ The Imam said, ‘A Muslim is one from whose tongue and hands other Muslims are safe.’ Then the Imam said, ‘Do you know who a believer is?’ I said, ‘You know better.’ The Imam said, ‘A believer is one who is an accepted trustworthy person among the Muslims in their properties and lives. It is unlawful for a Muslim to be unjust toward a Muslim, betray him or push him aside in his helplessness.’” 