Al-Kāfi - Volume 1 > Chapter on Miscellaneous Ahadith
Hadith #7

7ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ أَبِي نَصْرٍ عَنْ مُحَمَّدِ بْنِ حُمْرَانَ عَنْ أَسْوَدَ بْنِ سَعِيدٍ قَالَ كُنْتُ عِنْدَ ابي جعفر (عَلَيْهِ السَّلام) فَأَنْشَأَ يَقُولُ ابْتِدَاءً مِنْهُ مِنْ غَيْرِ أَنْ أَسْأَلَهُ نَحْنُ حُجَّةُ الله وَنَحْنُ بَابُ الله وَنَحْنُ لِسَانُ الله وَنَحْنُ وَجْهُ الله وَنَحْنُ عَيْنُ الله فِي خَلْقِهِ وَنَحْنُ وُلاةُ أَمْرِ الله فِي عِبَادِهِ.

7. A number of our people have narrated from Ahmad ibn Muhammad ibn abu Nasr from Muhammad ibn Humran from Aswad ibn Sa‘id who has said the following. “I was in the presence of Imam abu Ja‘far (a.s.), who began to speak without any question from me.” “We are the authority of Allah. We are the door to Allah. We are the tongue of Allah. We are the face of Allah. We are the eyes of Allah in His people. We are the authority in the commandments of Allah among His servants.”