٤ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ وَمُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ جَمِيعاً عَنْ عَلِيِّ بْنِ مَهْزِيَارَ قَالَ كَتَبَ رَجُلٌ إِلَى أَبِي جَعْفَرٍ (عَلَيهِ السَّلام) يَشْكُو إِلَيْهِ لَمَماً يَخْطُرُ عَلَى بَالِهِ فَأَجَابَهُ فِي بَعْضِ كَلامِهِ إِنَّ الله عَزَّ وَجَلَّ إِنْ شَاءَ ثَبَّتَكَ فَلا يَجْعَلُ لِإِبْلِيسَ عَلَيْكَ طَرِيقاً قَدْ شَكَا قَوْمٌ إِلَى النَّبِيِّ (صَلَّى اللهُ عَلَيْهِ وآلِه) لَمَماً يَعْرِضُ لَهُمْ لأنْ تَهْوِيَ بِهِمُ الرِّيحُ أَوْ يُقَطَّعُوا أَحَبُّ إِلَيْهِمْ مِنْ أَنْ يَتَكَلَّمُوا بِهِ فَقَالَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وآلِه) أَ تَجِدُونَ ذَلِكَ قَالُوا نَعَمْ فَقَالَ وَالَّذِي نَفْسِي بِيَدِهِ إِنَّ ذَلِكَ لَصَرِيحُ الإيمَانِ فَإِذَا وَجَدْتُمُوهُ فَقُولُوا آمَنَّا بِالله وَرَسُولِهِ وَلا حَوْلَ وَلا قُوَّةَ إِلا بِالله.
4. A number of our people have narrated from Sahl ibn Ziyad and Muhammad ibn Yahya from Ahmad ibn Muhammad (all them) from Ali ibn Mahziyar who has said the following: “A man wrote to abu Ja’far  and complained about what would pass in his mind. The Imam answered him in certain parts of his words: ‘If Allah, the Most Majestic, the Most Holy, wills, He will keep you steadfast and He will not allow Satan to find way in you. Certain people complained to the Holy Prophet for what happened in their mind so much so that they liked to be blown away by the wind or being cut in pieces than to speak out of that thing in their mind. The Messenger of Allah asked, ‘Do you find that?’ They said, ‘Yes we do.’ The Messenger of Allah said, ‘By the One in whose hands is my soul that it is clear belief. Whenever you sense it say, “We believe in Allah and His Messenger and there is no means and power without Allah.’” 