Al-Kāfi - Volume 1 > The degree of the Great Names of Allah that are given to the Imams (a.s.)
Hadith #1

1ـ مُحَمَّدُ بْنُ يَحْيَى وَغَيْرُهُ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ مُحَمَّدِ بْنِ الْفُضَيْلِ قَالَ أَخْبَرَنِي شُرَيْسٌ الْوَابِشِيُّ عَنْ جَابِرٍ عَنْ ابي جعفر (عَلَيْهِ السَّلام) قَالَ إِنَّ اسْمَ الله الاعْظَمَ عَلَى ثَلاثَةٍ وَسَبْعِينَ حَرْفاً وَإِنَّمَا كَانَ عِنْدَ آصَفَ مِنْهَا حَرْفٌ وَاحِدٌ فَتَكَلَّمَ بِهِ فَخُسِفَ بِالارْضِ مَا بَيْنَهُ وَبَيْنَ سَرِيرِ بِلْقِيسَ حَتَّى تَنَاوَلَ السَّرِيرَ بِيَدِهِ ثُمَّ عَادَتِ الارْضُ كَمَا كَانَتْ أَسْرَعَ مِنْ طَرْفَةِ عَيْنٍ وَنَحْنُ عِنْدَنَا مِنَ الاسْمِ الاعْظَمِ اثْنَانِ وَسَبْعُونَ حَرْفاً وَحَرْفٌ وَاحِدٌ عِنْدَ الله تَعَالَى اسْتَأْثَرَ بِهِ فِي عِلْمِ الْغَيْبِ عِنْدَهُ وَلا حَوْلَ وَلا قُوَّةَ إِلا بِالله الْعَلِيِّ الْعَظِيمِ.

1. Muhammad ibn Yahya and others have narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from Muhammad ibn al-Fudayl who has said that Shurays al-Wabishi narrated from Jabir from abu Ja‘far (a.s.) who has said the following. “The greatest name of Allah has seventy three letters. There was only of these letters. He spoke that one letter and land between him and throne of the Queen of Sheba (Bilqis) sunk down as such that he could reach her throne with his hand and the land returned to the original state. This happened in a blinking of A number of our people has narrated from eye. Of the greatest name of Allah there are seventy two letters with us. Allah has kept one letter exclusively for Himself in the knowledge of the unseen. There is no means and no power except by the help of Allah, the Most High, the Most Great.”