Dalil

Quran Al-Hadid 57:3

هُوَ ٱلۡأَوَّلُ وَٱلۡأٓخِرُ وَٱلظَّٰهِرُ وَٱلۡبَاطِنُۖ وَهُوَ بِكُلِّ شَيۡءٍ عَلِيمٌ

Translation

He is the First and the Last, the Ascendant and the Intimate, and He is, of all things, Knowing.