Quran Ash-Shuraa 42:5
تَكَادُ ٱلسَّمَٰوَٰتُ يَتَفَطَّرۡنَ مِن فَوۡقِهِنَّۚ وَٱلۡمَلَٰٓئِكَةُ يُسَبِّحُونَ بِحَمۡدِ رَبِّهِمۡ وَيَسۡتَغۡفِرُونَ لِمَن فِي ٱلۡأَرۡضِۗ أَلَآ إِنَّ ٱللَّهَ هُوَ ٱلۡغَفُورُ ٱلرَّحِيمُ ٥
Translation
The heavens almost break from above them, and the angels exalt [Allāh] with praise of their Lord and ask forgiveness for those on earth. Unquestionably, it is Allāh who is the Forgiving, the Merciful.