Dalil
العربية

Quran An-Naml 27:74

وَإِنَّ رَبَّكَ لَيَعۡلَمُ مَا تُكِنُّ صُدُورُهُمۡ وَمَا يُعۡلِنُونَ

Translation

And indeed, your Lord knows what their breasts conceal and what they declare.