Dalil
العربية

Quran Fatir 35:38

إِنَّ ٱللَّهَ عَٰلِمُ غَيۡبِ ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضِۚ إِنَّهُۥ عَلِيمُۢ بِذَاتِ ٱلصُّدُورِ

Translation

Indeed, Allāh is Knower of the unseen [aspects] of the heavens and earth. Indeed, He is Knowing of that within the breasts.