Al-Kāfi
Hadith 1116 35ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ إِبْرَاهِيمَ الْهَمَذَانِيِّ يَرْفَعُهُ إِلَى أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) فِي قَوْلِهِ تَعَالَى وَنَضَعُ الْمَوازِينَ الْقِسْطَ لِيَوْمِ الْقِيامَةِ قَالَ الانْبِيَاءُ وَالاوْصِيَاءُ (عَلَيْهم السَّلام )
35. A number of our people has narrated Ahmad ibn Muhammad from Ibrahim al-Hamadani in a marfu‘ manner from abu ‘Abdallah (a.s.) about the words of Allah, the Most High. “We shall set up the balance to maintain proper justice on the Day of Judgment. . .” (21:47) The Imam (a.s.) said, “Balances are the prophets and the executors of their wills.”