Qur'an 25:6

قُلْ أَنزَلَهُ ٱلَّذِى يَعْلَمُ ٱلسِّرَّ فِى ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ ۚ إِنَّهُۥ كَانَ غَفُورًا رَّحِيمًا

“Say, [O Muḥammad], "It has been revealed by He who knows [every] secret within the heavens and the earth. Indeed, He is ever Forgiving and Merciful."”

Al-Furqaan 25:6 · Saheeh International