Quran 35:38 from Surah Faatir on Divine Marvels.
إِنَّ ٱللَّهَ عَٰلِمُ غَيۡبِ ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضِۚ إِنَّهُۥ عَلِيمُۢ بِذَاتِ ٱلصُّدُورِ
English translation: Indeed Allah (is the) Knower (of the) unseen (of) the heavens and the earth Indeed, He (is the) All-Knower of what (is) in the breasts of what (is) in the breasts
Transliteration: inna al-laha alimu ghaybi al-samawati wal-ardi innahu alimun bidhati al-suduri