Al-Kāfi
Hadith 7651- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عُثْمَانَ بْنِ عِيسَى عَنْ وَهْبِ بْنِ عَبْدِ رَبِّهِ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) قَالَ مَنْ قَالَ اللهُ يَعْلَمُ مَا لَمْ يَعْلَمِ اهْتَزَّ لِذَلِكَ عَرْشُهُ إِعْظَاماً لَهُ.
1. A number of our people have narrated from Ahmad ibn Muhammad from ‘Uthman ibn ‘Isa from Wahab ibn ‘Abd Rabbihi who has narrated the following: “Abu ‘Abd Allah (a.s.), has said, ‘If one says, “Allah knows”, when he does not know something, the Throne of Allah vibrates as a sign of expressing His greatness.”’