٤ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ إِبْرَاهِيمَ بْنِ أَبِي الْبِلادِ عَنْ سَدِيرٍ الصَّيْرَفِيِّ قَالَ أَوْصَانِي أَبُو جَعْفَرٍ (عَلَيْهِ السَّلام) بِحَوَائِجَ لَهُ بِالْمَدِينَةِ فَخَرَجْتُ فَبَيْنَا أَنَا بَيْنَ فَجِّ الرَّوْحَاءِ عَلَى رَاحِلَتِي إِذَا إِنْسَانٌ يَلْوِي ثَوْبَهُ قَالَ فَمِلْتُ إِلَيْهِ وَظَنَنْتُ أَنَّهُ عَطْشَانُ فَنَاوَلْتُهُ الادَاوَةَ فَقَالَ لِي لا حَاجَةَ لِي بِهَا وَنَاوَلَنِي كِتَاباً طِينُهُ رَطْبٌ قَالَ فَلَمَّا نَظَرْتُ إِلَى الْخَاتَمِ إِذَا خَاتَمُ ابي جعفر (عَلَيْهِ السَّلام) فَقُلْتُ مَتَى عَهْدُكَ بِصَاحِبِ الْكِتَابِ قَالَ السَّاعَةَ وَإِذَا فِي الْكِتَابِ أَشْيَاءُ يَأْمُرُنِي بِهَا ثُمَّ الْتَفَتُّ فَإِذَا لَيْسَ عِنْدِي أَحَدٌ قَالَ ثُمَّ قَدِمَ أَبُو جَعْفَرٍ (عَلَيْهِ السَّلام) فَلَقِيتُهُ فَقُلْتُ جُعِلْتُ فِدَاكَ رَجُلٌ أَتَانِي بِكِتَابِكَ وَطِينُهُ رَطْبٌ فَقَالَ يَا سَدِيرُ إِنَّ لَنَا خَدَماً مِنَ الْجِنِّ فَإِذَا أَرَدْنَا السُّرْعَةَ بَعَثْنَاهُمْ.
 وَفِي رِوَايَةٍ أُخْرَى قَالَ إِنَّ لَنَا أَتْبَاعاً مِنَ الْجِنِّ كَمَا أَنَّ لَنَا أَتْبَاعاً مِنَ الانْسِ فَإِذَا أَرَدْنَا أَمْراً بَعَثْنَاهُمْ.
 4. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Ibrahim ibn abu al-Balad from Sadir al-Sayrafi who has said the following. “Abu Ja‘far  asked me to help him in a few things in Maina. I left and when reached fajj al-Rawha’ a man waved to me with his cloths. The narrator has said that I turned to him and I though he was thirsty. I offered the cup but he declined saying, “I do not need it.” He gave a letter with its ink still not dried up. The narrator has said that when looked at it, it had the seal of abu Ja‘far  on. I asked him when were you in the presence of abu Ja‘far ?” He said, “Just now I was in his presence.” In the letter there were few things that he had commanded me to do. When looked around there was no one with me.” The narrator has said that then I went to meet abu Ja‘far  and said, may Allah take my soul in service for your cause, a man came to me with your letter the ink of which was not yet dried up.” He said, “O Sadir, we servants from Jinns. When we would need a thing to happen quickly we send them to do it.”