 ١٦ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ الْحَسَنِ بْنِ عَلِيٍّ الْوَشَّاءِ عَنْ عَلِيِّ بْنِ أَبِي حَمْزَةَ عَنْ أَبِي بَصِيرٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) قَالَ لا بُدَّ لِصَاحِبِ هَذَا الامْرِ مِنْ غَيْبَةٍ وَلا بُدَّ لَهُ فِي غَيْبَتِهِ مِنْ عُزْلَةٍ وَنِعْمَ الْمَنْزِلُ طَيْبَةُ وَمَا بِثَلاثِينَ مِنْ وَحْشَةٍ.
 16. A number of our people has narrated from Ahmad ibn Muhammad from al-Hassan ibn Ali al-Washsha’ from Ali ibn abu Hamza from abu Basir from abu ‘Abdallah  who has said the following. “It is necessary for the person in charge of this task (Leadership with Divine Authority) to disappear from the public sight and in his disappearance form public sight he must remain away from public. How good is Tayba, the city of Madina, for dwelling and living with thirty people is not frightening isolation.”