٤ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ أَحْمَدَ عَنْ بَعْضِ أَصْحَابِنَا عَنْ عَلِيِّ بْنِ سُلَيْمَانَ بْنِ رُشَيْدٍ عَنْ مُوسَى بْنِ سَلامٍ عَنْ سَعْدَانَ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ قُلْتُ لَهُ مَا الَّذِي يُثْبِتُ الإيمَانَ فِي الْعَبْدِ قَالَ الْوَرَعُ وَالَّذِي يُخْرِجُهُ مِنْهُ قَالَ الطَّمَعُ.
4. Muhammad ibn Yahya has narrated from Muhammad ibn Ahmad from certain individuals of our people from Ali ibn Sulayman ibn Rashid from Musa ibn Salam from Sa’dan who has said the following: “Once I asked Abu ‘Abdillah  ‘What (deed) establishes belief firmly in a servant (of Allah)?’ The Imam said, ‘It is restraint from the worldly attractions (sins).’ I then asked, ‘What (kind of thing) removes belief from a person?’ The Imam said, ‘It is greed.’” 