Quran 64:4 from Surah At-Taghaabun on Divine Marvels.
يَعۡلَمُ مَا فِي ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضِ وَيَعۡلَمُ مَا تُسِرُّونَ وَمَا تُعۡلِنُونَۚ وَٱللَّهُ عَلِيمُۢ بِذَاتِ ٱلصُّدُورِ
English translation: He knows what (is) in the heavens and the earth and He knows what you conceal and what you declare And Allah (is) All-Knowing of what (is in) the breasts
Transliteration: ya'lamu ma fi al-samawati wal-ardi waya'lamu ma tusirruna wama tu'linuna wal-lahu alimun bidhati al-suduri