 ٤ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ مُحَمَّدِ بْنِ عِيسَى عَنْ يُونُسَ عَنْ رَجُلٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ قَالَ ذُكِرَ الْمُحَدَّثُ عِنْدَ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) فَقَالَ إِنَّهُ يَسْمَعُ الصَّوْتَ وَلا يَرَى الشَّخْصَ فَقُلْتُ لَهُ جُعِلْتُ فِدَاكَ كَيْفَ يَعْلَمُ أَنَّهُ كَلامُ الْمَلَكِ قَالَ إِنَّهُ يُعْطَى السَّكِينَةَ وَالْوَقَارَ حَتَّى يَعْلَمَ أَنَّهُ كَلامُ مَلَكٍ.
 4. Ali ibn Ibrahim has narrated from Muhammad ibn ‘Isa from Yunus from a man that Muhammad ibn Muslim who has said the following. “Once Muhaddath was mentioned in the presence of abu ‘Abdallah  and he said, “He, Muhaddath, hears the voice but does not see the persons of the angels.” I then said to him, “May Allah take my soul in service for your cause, how he would come to know that the voice and words are from the angels?” The Imam  said, “He is given the serenity and dignity to the level that he learns about its being the speech of the angels.”