Al-'Ankabut 29:49

بَلۡ هُوَ ءَايَٰتُۢ بَيِّنَٰتٞ فِي صُدُورِ ٱلَّذِينَ أُوتُواْ ٱلۡعِلۡمَۚ وَمَا يَجۡحَدُ بِـَٔايَٰتِنَآ إِلَّا ٱلظَّـٰلِمُونَ 49

Rather, the Qur'an is distinct verses [preserved] within the breasts of those who have been given knowledge. And none reject Our verses except the wrongdoers