Surah Fatir, Verse 38

إِنَّ ٱللَّهَ عَٰلِمُ غَيۡبِ ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضِۚ إِنَّهُۥ عَلِيمُۢ بِذَاتِ ٱلصُّدُورِ٣٨

inna l-laha ʿālimu ghaybi l-samāwāti wal-arḍi innahu ʿalīmun bidhāti l-ṣudūri

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