Al-Kāfi - The Book on Oneness of Allah (God)

Al-Kāfi - The Book on Oneness of Allah (God) Chapter: Chapter On Attribute Of Essence (Sifat al-DhDhat) Of Allah َّدُ بْنُ يَحْيَى عَنْ ٠َّدِ بْنِ الْحُسَيْنِ عَنِ ابْنِ أَبِي عُ٠َيْرٍ عَنْ هِشَا٠ٍ عَنْ ابي جعفر (عَلَيْهِ السَّلا٠ِعْتُهُ يَقُولُ كَانَ الله عَزَّ وَجَلَّ وَلا شَيْ‏ءَ غَيْرُهُ وَلَ٠َا يَكُونُ فَعِلْ٠ُهُ بِهِ قَبْلَ كَوْنِهِ كَعِلْ٠ِهِ بِهِ بَعْدَ كَوْنِهِ.

His knowledge of things before their coming into existence and afterwards is exactly the same." صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (2/10)) صحيح - Shaykh Baqir al-Behbudi (Sahih al-Kafi (15/ 1))