﴿ وَرَبُّكَ يَعْلَمُ مَا تُكِنُّ صُدُورُهُمْ وَمَا يُعْلِنُونَ ﴾

“And thy Sustainer knows all that their hearts conceal as well as all that they bring into the open:”

And your Lord knows what their breasts conceal what their hearts keep secret of disbelief and otherwise and what they proclaim by their tongues of such things.